Post TRUS Prostate Biopsy: Complications & Patient Instructions

Q: Is it normal to see blood in urine, semen, or stool after prostate biopsy?

Yes. Blood in urine 66%, semen 38%, stool 28% — all expected and resolve within 10 days. No treatment needed unless severe or prolonged beyond 10 days.

Q: What signs of infection should I watch for after prostate biopsy?

Fever >38°C, chills, worsening pain, difficulty urinating, or feeling unwell require immediate care. May indicate UTI (6%), sepsis (0.5%), or perineal infection. Seek emergency care for high fever or chills.

Q: Why is TRUS biopsy still performed if it carries infection risk?

TRUS biopsy remains the gold standard for confirming prostate cancer. Diagnostic benefit outweighs risk in properly selected patients. Modern alternatives include MRI-fusion transperineal biopsy which avoids the rectal route and greatly reduces infection risk.

បានធ្វើបច្ចុប្បន្នភាពចុងក្រោយ៖ ខែឧសភា 18, 2026

Soaravy Weerasopone, ឯកទេសប្រព័ន្ធទឹកនោម

ជ្ឈមណ្ឌលកណ្តាលនៃមន្ទីរពេទ្យបាងកក។

មន្ទីរពេទ្យ Samitivej Sriracha, Chonburi

ទំនាក់ទំនង LINE

TRUS (Transrectal Ultrasound-Guided) prostate biopsy was first introduced in 1989 and remains the gold standard for confirming prostate cancer diagnosis, with over 4 million procedures performed worldwide annually. This article covers the possible complications following TRUS prostate biopsy so patients are prepared and know when to seek urgent care.

មជ្ឈមណ្ឌលផ្នែកជម្ងឺប្រព័ន្ធទឹកនោមនៃមន្ទីរពេទ្យបាងកក ប្រទេសថៃ។ កក់លេខរៀងការណាត់ជួបតាម online 02-310-3009 bhquro@bdms.co.th
មន្ទីរពេទ្យ Samitivej Sriracha ខេត្តឈុនបូរី។ 088-022-1445

TRUS-guided prostate biopsy is performed as a day-care procedure under ultrasound guidance.

Possible complications after TRUS prostate biopsy

Bleeding complications — typically resolve within 10 days post-procedure:
- Blood in urine (hematuria) — 66%
- Blood in ejaculation (hematospermia) — 38%
- Blood in stool (rectal bleeding) — 28%
Infectious complications:
- Urinary tract infection — 6%
- Fever — 4%
- Persistent painful urination — 3%
- Pain or burning on urination — 1%
- Serious bloodstream infection (sepsis) — 0.5%
- Serious perineal skin infection — 0.05%
Other complications:
- Vasovagal response (sweating, nausea, dizziness, fainting) — 7%
- Acute urinary retention — 0.3%
- Myocardial infarction — 0.3%

The urologist uses ultrasound guidance to target prostate tissue during the biopsy procedure.

The infection risk from TRUS biopsy relates to its transrectal approach — the ultrasound probe necessarily passes through the rectal canal, which is contaminated with bowel flora. Published data confirms that postoperative infection rates cannot be fully eliminated by any preoperative rectal preparation protocol, even with proper prophylactic antibiotics given before every procedure.

Prophylactic antibiotics must always be administered before TRUS biopsy to reduce infection risk.

Despite these complications, the benefits of TRUS biopsy in correctly confirming prostate cancer diagnosis outweigh the risks when appropriate patient selection is applied. Under specialist urological care, careful patient selection and pre-procedure preparation minimize risks. Informed counseling about potential complications reduces patient anxiety and helps patients recognize warning signs that require urgent medical attention.

Frequently Asked Questions About Post-TRUS Prostate Biopsy Care

Is it normal to see blood in urine, semen, or stool after prostate biopsy?

Yes. Bleeding complications are very common after TRUS prostate biopsy. Blood in urine (hematuria) occurs in up to 66% of patients, blood in ejaculation (hematospermia) in 38%, and rectal bleeding in 28%. These are expected side effects of the needle passes through the prostate and surrounding tissue. In the vast majority of cases, all bleeding resolves spontaneously within 10 days. No special treatment is required unless bleeding is severe or prolonged beyond this period.

What signs of infection should I watch for after prostate biopsy?

Fever above 38°C, shaking chills, worsening pain, difficulty urinating, or feeling generally unwell after TRUS biopsy are warning signs that require immediate medical attention. These may indicate urinary tract infection (6%), sepsis (0.5%), or perineal infection (0.05%). The infection risk is inherent to the transrectal approach — the probe passes through the rectum, which contains bowel bacteria. Prophylactic antibiotics are given before every TRUS biopsy to reduce this risk, but cannot eliminate it entirely. Seek emergency care if you develop high fever or chills after the procedure.

Why is TRUS biopsy still performed if it carries infection risk?

TRUS-guided biopsy remains the definitive method for confirming prostate cancer diagnosis. More than 4 million procedures are performed worldwide annually. The diagnostic benefit — definitively confirming or ruling out prostate cancer — outweighs the complication risk in appropriately selected patients. Modern advances include MRI-fusion-guided biopsy and transperineal biopsy (which avoids the rectal route entirely, significantly reducing infection risk). Dr. Soarawee Weerasopone offers the latest MRI-fusion transperineal approach at Bangkok Hospital Headquarters.

If you have concerns about prostate biopsy or have developed complications after the procedure, Dr. Soarawee Weerasopone offers specialist consultations at Bangkok Hospital Headquarters. កក់ការពិគ្រោះយោបល់.

ការបដិសេធ៖ ខ្លឹមសារនេះត្រូវបានសរសេរ និងពិនិត្យដោយលោកវេជ្ជបណ្ឌិត Soarawee Weerasopone ដែលជាគ្រូពេទ្យឯកទេសខាងប្រព័ន្ធទឹកនោមដែលមានវិញ្ញាបនបត្រនៅទីស្នាក់ការកណ្តាលមន្ទីរពេទ្យបាងកក។ វាត្រូវបានបម្រុងទុកសម្រាប់គោលបំណងអប់រំតែប៉ុណ្ណោះ ហើយមិនមែនជាដំបូន្មានផ្នែកវេជ្ជសាស្ត្រទេ។ តែងតែពិគ្រោះជាមួយអ្នកជំនាញថែទាំសុខភាពដែលមានសមត្ថភាពមុនពេលចាប់ផ្តើមការព្យាបាលណាមួយឡើយ។.

សរសេរ និងពិនិត្យផ្នែកវេជ្ជសាស្ត្រដោយ៖ វេជ្ជបណ្ឌិត សូរ៉ាវី វីរ៉ាសូផូន (វេជ្ជបណ្ឌិត ប៉ុម) — អ្នកជំនាញខាងប្រព័ន្ធទឹកនោមដែលមានវិញ្ញាបនបត្រពីក្រុមប្រឹក្សាភិបាល ទីស្នាក់ការកណ្តាលមន្ទីរពេទ្យបាងកក។ អ្នកស្រាវជ្រាវអន្តរជាតិ៖ មហាវិទ្យាល័យវេជ្ជសាស្ត្របៃឡ័រ (សហរដ្ឋអាមេរិក) · សាកលវិទ្យាល័យជូនថេនដូ (ជប៉ុន) · មន្ទីរពេទ្យអនុស្សាវរីយ៍ឆាងហ្គុង (តៃវ៉ាន់)។.

វេជ្ជបណ្ឌិត Soarawee Weerasopone

លោកវេជ្ជបណ្ឌិត សូរ៉ាវី វីរ៉ាសូផូន (លោកវេជ្ជបណ្ឌិត ប៉ុម) គឺជាគ្រូពេទ្យឯកទេសខាងប្រព័ន្ធទឹកនោមដែលមានវិញ្ញាបនបត្រនៅទីស្នាក់ការកណ្តាលមន្ទីរពេទ្យបាងកក ដែលមានជំនាញខាងសុខភាពបុរស ការវះកាត់ដោយមនុស្សយន្ត (ប្រព័ន្ធដាវីនស៊ី) និងការព្យាបាលគ្រួសក្នុងតម្រងនោម។ លោកបានបញ្ចប់អាហារូបករណ៍អន្តរជាតិនៅមហាវិទ្យាល័យវេជ្ជសាស្ត្របៃឡ័រ (សហរដ្ឋអាមេរិក) មន្ទីរពេទ្យសាកលវិទ្យាល័យជូនថេនដូ (ជប៉ុន) និងមន្ទីរពេទ្យអនុស្សាវរីយ៍ឆាងហ្គុង (តៃវ៉ាន់)។ ខ្លឹមសារវេជ្ជសាស្ត្រទាំងអស់នៅលើគេហទំព័រនេះត្រូវបានសរសេរ និងពិនិត្យដោយលោកវេជ្ជបណ្ឌិត សូរ៉ាវី ដោយផ្អែកលើបទពិសោធន៍គ្លីនិក និងការបណ្តុះបណ្តាលអន្តរជាតិរបស់លោក។.