{"id":2818,"date":"2021-04-02T08:00:00","date_gmt":"2021-04-02T01:00:00","guid":{"rendered":"https:\/\/drsoaraweeurology.com\/?p=2818"},"modified":"2026-05-18T09:58:23","modified_gmt":"2026-05-18T02:58:23","slug":"pielonefrite-acuta","status":"publish","type":"post","link":"https:\/\/drsoaraweeurology.com\/it\/2021\/04\/02\/acute-pyelonephritis\/","title":{"rendered":"Pielonefrite acuta: Infezione batterica del rene"},"content":{"rendered":"\n<div class=\"wp-block-columns coblocks-author-columns has-background is-layout-flex wp-container-core-columns-is-layout-52275889 wp-block-columns-is-layout-flex\" style=\"background-color:#8C8C971A;padding-top:2.5rem;padding-right:2.5rem;padding-bottom:2.5rem;padding-left:2.5rem\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<figure class=\"wp-block-image size-full is-style-rounded\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" 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12 12 12 12-5.372 12-12S18.628 0 12 0zM7.369 4.378c.525 0 .947.431.947.947 0 .525-.422.947-.947.947-.525 0-.946-.422-.946-.947 0-.525.421-.947.946-.947zm-.722 3.038h1.444v10.041H6.647V7.416zm3.562 0h3.9c3.712 0 5.344 2.653 5.344 5.025 0 2.578-2.016 5.025-5.325 5.025h-3.919V7.416zm1.444 1.303v7.444h2.297c3.272 0 4.022-2.484 4.022-3.722 0-2.016-1.284-3.722-4.097-3.722h-2.222z\"\/>\n    <\/svg>\n  <\/a>\n  \n  <a href=\"https:\/\/scholar.google.com\/citations?user=lTgsRMUAAAAJ&#038;hl=en\" \n     target=\"_blank\" \n     rel=\"noopener\"\n     title=\"Google Scholar\"\n     aria-label=\"View Google Scholar Profile\"\n     style=\"text-decoration: none; color: #4285F4; transition: transform 0.2s; display: inline-block;\"\n     onmouseover=\"this.style.transform='scale(1.15)'\"\n     onmouseout=\"this.style.transform='scale(1)'\">\n    <svg width=\"28\" height=\"28\" viewBox=\"0 0 24 24\" fill=\"currentColor\">\n      <path d=\"M5.242 13.769L0.5 9.5 12 1l11.5 8.5-4.742 4.269C17.548 11.249 14.978 9.5 12 9.5c-2.977 0-5.548 1.748-6.758 4.269zM12 10a7 7 0 1 0 0 14 7 7 0 0 0 0-14z\"\/>\n    <\/svg>\n  <\/a>\n  \n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Acute Pyelonephritis is a bacterial infection of the kidney and falls under the responsibility of urologists. It is predominantly caused by the gram-negative bacterium <em>Escherichia coli<\/em> (E. coli), which normally lives as normal flora in human feces but is highly harmful when it enters the urinary tract.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Urology center Bangkok hospital Thailand\u00a0<a href=\"https:\/\/www.bangkokhospital.com\/en\/bangkok\/doctor\/dr-soarawee-weerasopone-2\" target=\"_blank\" rel=\"noreferrer noopener\">Booking online<\/a>\u00a0<a href=\"tel:02-310-3009\">02-310-3009<\/a>\u00a0<a href=\"mailto:bhquro@bdms.co.th\">bhquro@bdms.co.th<\/a><\/li>\n\n\n\n<li>Samitivej Sriracha hospital Chonburi&nbsp;<a href=\"tel:088-022-1445\">088-022-1445<\/a><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"800\" height=\"600\" data-attachment-id=\"2826\" data-permalink=\"https:\/\/drsoaraweeurology.com\/it\/2021\/04\/02\/acute-pyelonephritis\/micro-bacterium-and-therapeutic-bacteria-organisms-microscopic-salmonella-lactobacillus-or-acidophilus-organism-vector-background\/\" data-orig-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?fit=1200%2C900&amp;ssl=1\" data-orig-size=\"1200,900\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;Micro bacterium and therapeutic bacteria organisms. Microscopic salmonella, lactobacillus or acidophilus organism. Abstract biological vector background&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;Micro bacterium and therapeutic bacteria organisms. Microscopic salmonella, lactobacillus or acidophilus organism vector background&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"E coli is the most common cause in Acute bacterial pyelonephritis\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;E coli is the most common cause in Acute bacterial pyelonephritis&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?fit=800%2C600&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?resize=800%2C600&#038;ssl=1\" alt=\"E. coli acute pyelonephritis\" class=\"wp-image-2826\" srcset=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?resize=16%2C12&amp;ssl=1 16w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?resize=800%2C600&amp;ssl=1 800w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/E-coli.jpg?resize=200%2C150&amp;ssl=1 200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"><em>E. coli<\/em> is the most common causative organism in acute bacterial pyelonephritis.<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Routes of <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK519537\/\">bacterial penetration<\/a> to the kidney<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Ascending infection from the lower urinary tract<\/strong> \u2014 the most common route. E. coli uses fimbriae (leg-like appendages) to climb from the urethra upward through the bladder, ureter, and into the kidney, causing acute pyelonephritis<\/li>\n\n\n<li><strong>Hematogenous spread<\/strong> \u2014 a rare cause, typically occurring in immunocompromised patients when bacteria enter the bloodstream and seed the kidney<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Acute pyelonephritis is 5 times more common in females than males. Young sexually active women are the most commonly affected group, followed by infants, the elderly, and pregnant women.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"800\" height=\"533\" data-attachment-id=\"2827\" data-permalink=\"https:\/\/drsoaraweeurology.com\/it\/2021\/04\/02\/acute-pyelonephritis\/pretty-smiling-joyfully-female-with-fair-hair-dressed-casually-looking-with-satisfaction-at-camera-being-happy-studio-shot-of-good-looking-beautiful-woman-isolated-against-blank-studio-wall\/\" data-orig-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Healthy-female.jpg?fit=1200%2C800&amp;ssl=1\" data-orig-size=\"1200,800\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;5.6&quot;,&quot;credit&quot;:&quot;Seva Levitsky&quot;,&quot;camera&quot;:&quot;Canon EOS 5D Mark III&quot;,&quot;caption&quot;:&quot;Pretty smiling joyfully female with fair hair, dressed casually, looking with satisfaction at camera, being happy. Studio shot of good-looking beautiful woman isolated against blank studio wall.&quot;,&quot;created_timestamp&quot;:&quot;1511902369&quot;,&quot;copyright&quot;:&quot;Cookie Studio 2017&quot;,&quot;focal_length&quot;:&quot;70&quot;,&quot;iso&quot;:&quot;100&quot;,&quot;shutter_speed&quot;:&quot;0.00625&quot;,&quot;title&quot;:&quot;Pretty smiling joyfully female with fair hair, dressed casually, looking with satisfaction at camera, being happy. Studio shot of good-looking beautiful woman isolated against blank studio wall.&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Young female with an active sexual conditions, significantly found as the most common affected by the Acute pyelonephritis.\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Young female with an active sexual conditions, significantly found as the most common affected by the Acute pyelonephritis.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Healthy-female.jpg?fit=800%2C534&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Healthy-female.jpg?resize=800%2C533&#038;ssl=1\" alt=\"Young female acute pyelonephritis risk\" class=\"wp-image-2827\" srcset=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Healthy-female.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Healthy-female.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Healthy-female.jpg?resize=1024%2C683&amp;ssl=1 1024w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Healthy-female.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Healthy-female.jpg?resize=16%2C12&amp;ssl=1 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Young sexually active females are the most commonly affected group for acute pyelonephritis.<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Classical triad of symptoms<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fever<\/strong> \u2014 often high-grade and sudden onset<\/li>\n\n\n<li><strong>Flank pain<\/strong> \u2014 typically unilateral, over the affected kidney area<\/li>\n\n\n<li><strong>Nausea or vomiting<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Symptoms typically develop within hours. Painful urination and blood in urine may also be present, particularly in female patients. Physical examination often reveals tenderness on flank percussion (costovertebral angle tenderness). Urinalysis is the most useful initial investigation, frequently showing large numbers of white blood cells (pyuria). Imaging (CT scan) is optional and reserved for clinically severe or complicated cases.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" data-attachment-id=\"2828\" data-permalink=\"https:\/\/drsoaraweeurology.com\/it\/2021\/04\/02\/acute-pyelonephritis\/woman-in-a-medical-mask-with-a-high-fever-holding-a-thermometer-in-his-hands-with-a-reading-of-39-5-severe-condition-of-a-coronavirus-patient-distribution-of-covid-19-in-the-incubation-period\/\" data-orig-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/High-grade-fever.jpg?fit=1200%2C800&amp;ssl=1\" data-orig-size=\"1200,800\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;5&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon EOS 5D Mark II&quot;,&quot;caption&quot;:&quot;woman in a medical mask with a high fever. Holding a thermometer in his hands with a reading of 39.5. Severe condition of a coronavirus patient. Distribution of covid-19 in the incubation period.&quot;,&quot;created_timestamp&quot;:&quot;1584850307&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;55&quot;,&quot;iso&quot;:&quot;100&quot;,&quot;shutter_speed&quot;:&quot;0.01&quot;,&quot;title&quot;:&quot;woman in a medical mask with a high fever. Holding a thermometer in his hands with a reading of 39.5. Severe condition of a coronavirus patient. Distribution of covid-19 in the incubation period&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Febrile fever is 1 out of 3 classical signs.\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Febrile fever is 1 out of 3 classical signs.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/High-grade-fever.jpg?fit=800%2C534&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/High-grade-fever.jpg?resize=800%2C533&#038;ssl=1\" alt=\"High fever acute pyelonephritis\" class=\"wp-image-2828\" srcset=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/High-grade-fever.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/High-grade-fever.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/High-grade-fever.jpg?resize=1024%2C683&amp;ssl=1 1024w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/High-grade-fever.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/High-grade-fever.jpg?resize=16%2C12&amp;ssl=1 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">High-grade fever is one of the three classical signs of acute pyelonephritis.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Acute pyelonephritis can be managed as outpatient or inpatient depending on severity. Once diagnosed, a urine culture must be collected to identify the specific pathogen (results take approximately 48 hours). During this waiting period, broad-spectrum antibiotics are started empirically. When culture results confirm the pathogen and its sensitivity, treatment is adjusted to a targeted narrow-spectrum antibiotic.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Prognosis is excellent with timely treatment. Delayed treatment can lead to serious complications including renal abscess, emphysematous pyelonephritis (gas-forming infection), urosepsis, or kidney failure.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Prevention of Acute Pyelonephritis<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"599\" data-attachment-id=\"2825\" data-permalink=\"https:\/\/drsoaraweeurology.com\/it\/2021\/04\/02\/acute-pyelonephritis\/breakfast-cute-girl-at-the-table\/\" data-orig-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?fit=1200%2C899&amp;ssl=1\" data-orig-size=\"1200,899\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;4.5&quot;,&quot;credit&quot;:&quot;Yeko Photo Studio&quot;,&quot;camera&quot;:&quot;Canon EOS 6D&quot;,&quot;caption&quot;:&quot;Morning. Attractive woman with glass of water&quot;,&quot;created_timestamp&quot;:&quot;1396370000&quot;,&quot;copyright&quot;:&quot;Yeko Photo Studio&quot;,&quot;focal_length&quot;:&quot;100&quot;,&quot;iso&quot;:&quot;500&quot;,&quot;shutter_speed&quot;:&quot;0.008&quot;,&quot;title&quot;:&quot;Breakfast. Cute girl at the table&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Drink plenty of water more than 2 Liters a day run as protective factor.\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Drink plenty of water more than 2 Liters a day run as protective factor.&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?fit=800%2C599&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?resize=800%2C599&#038;ssl=1\" alt=\"Drink water UTI prevention\" class=\"wp-image-2825\" srcset=\"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?resize=1024%2C767&amp;ssl=1 1024w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?resize=768%2C575&amp;ssl=1 768w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?resize=16%2C12&amp;ssl=1 16w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?resize=800%2C600&amp;ssl=1 800w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2021\/03\/Drink-water.jpg?resize=200%2C150&amp;ssl=1 200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Drinking more than 2 litres of water daily is a key protective measure against urinary tract infection and pyelonephritis.<\/figcaption><\/figure>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Drink more than 2 litres of water per day to flush bacteria from the urinary tract<\/li>\n\n\n<li>Do not hold urine \u2014 urinate when the urge occurs<\/li>\n\n\n<li>Wipe from front to back after urination and defecation (especially important for women)<\/li>\n\n\n<li>Urinate after sexual intercourse to flush any ascending bacteria<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions About Acute Pyelonephritis<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">What are the symptoms of acute pyelonephritis?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The classical triad of acute pyelonephritis is fever (often high-grade), flank pain (over the affected kidney), and nausea or vomiting. These symptoms typically develop rapidly within hours. Females may also experience painful urination and blood in the urine simultaneously. Physical examination typically shows tenderness when the flank is tapped (CVA tenderness). Any patient with fever combined with flank pain should seek medical evaluation urgently, as untreated pyelonephritis can progress to sepsis or renal abscess.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How is acute pyelonephritis diagnosed and treated?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Diagnosis is based on clinical symptoms (fever, flank pain, nausea), urinalysis (showing pyuria and bacteriuria), and urine culture (to identify the specific organism and its antibiotic sensitivity). CT scan is reserved for complicated or severe cases. Treatment begins immediately with broad-spectrum antibiotics while awaiting culture results. Once the urine culture confirms the pathogen (approximately 48 hours), antibiotics are adjusted to a targeted narrow-spectrum agent. Mild cases may be managed as outpatients; severe cases with high fever, vomiting, or signs of sepsis require inpatient IV antibiotics.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How can I prevent pyelonephritis from recurring?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Prevention focuses on reducing ascending bacterial migration through the urinary tract. Key measures include: drinking more than 2 litres of water daily (to flush bacteria), not holding urine, wiping front to back after using the toilet (critical for women to prevent fecal bacteria from reaching the urethra), and urinating after sexual intercourse. Women who experience recurrent urinary tract infections should consult a urologist for evaluation of any anatomical or functional factors predisposing to recurrence, and to discuss prophylactic antibiotic strategies if appropriate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you suspect acute pyelonephritis or have recurrent kidney infections, Dr. Soarawee Weerasopone offers specialist consultations at Bangkok Hospital Headquarters. <a href=\"https:\/\/www.bangkokhospital.com\/en\/bangkok\/doctor\/dr-soarawee-weerasopone-2\">Book a Consultation<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Disclaimer:<\/strong> This content is written and reviewed by Dr. Soarawee Weerasopone, a board-certified urologist at Bangkok Hospital Headquarters. It is intended for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any medical treatment.<\/p>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the symptoms of acute pyelonephritis?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Classical triad: fever (high-grade), flank pain (over affected kidney), nausea\/vomiting. Develops rapidly within hours. Females may also have painful urination and blood in urine. CVA tenderness on exam. Seek urgent evaluation if fever + flank pain appear together.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How is acute pyelonephritis diagnosed and treated?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Diagnosis: clinical symptoms + urinalysis (pyuria\/bacteriuria) + urine culture. CT scan for complicated cases. Treatment: broad-spectrum antibiotics started immediately, then narrowed based on culture result (48 hrs). Mild cases: outpatient. Severe\/septic cases: inpatient IV antibiotics.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How can I prevent pyelonephritis from recurring?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Drink >2L water daily, don't hold urine, wipe front-to-back (women), urinate after sex. Recurrent UTI\/pyelonephritis warrants urological evaluation for underlying factors and possible prophylactic antibiotic consideration.\"\n      }\n    }\n  ]\n}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Acute Pyelonephritis is a bacterial infection of the kidney and falls under the responsibility of urologists. It is predominantly caused by the gram-negative bacterium Escherichia coli (E. coli), which normally lives as normal flora in human feces but is highly harmful when it enters the urinary tract. Routes of bacterial penetration to the kidney Acute [&hellip;]<\/p>\n","protected":false},"author":185281453,"featured_media":10014,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"Acute pyelonephritis: bacterial kidney infection caused by E. coli, classical fever-flank pain-nausea triad, diagnosis, antibiotic treatment, and prevention strategies.","jetpack_seo_html_title":"Acute Pyelonephritis: Kidney Infection Symptoms & Treatment | Dr. Soarawee","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[1362],"tags":[1408,1407],"class_list":["post-2818","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-infection","tag-acute-pyelonephritis","tag-kidney-infection"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/drsoaraweeurology.com\/wp-content\/uploads\/2026\/04\/Acute-Pyelonephritis.webp?fit=1200%2C630&ssl=1","jetpack_likes_enabled":false,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pgZdrK-Js","_links":{"self":[{"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/posts\/2818","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/users\/185281453"}],"replies":[{"embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/comments?post=2818"}],"version-history":[{"count":20,"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/posts\/2818\/revisions"}],"predecessor-version":[{"id":9736,"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/posts\/2818\/revisions\/9736"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/media\/10014"}],"wp:attachment":[{"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/media?parent=2818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/categories?post=2818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drsoaraweeurology.com\/it\/wp-json\/wp\/v2\/tags?post=2818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}