마지막 업데이트: 2026년 5월 18일
Epididymal cyst is one of the most common testicular-related issues at my urology office. It was defined as an encysted structure closures the epididymitis which is literally described as a result from prior injuries or inflammations of the epididymis tubule. These meaning that epididymal cyst are absolutely a benign lesion.

자연사 부고환 낭종
While mostly asymptomatic, 20-40% are incidentally found on scrotal ultrasound. The natural history varies from spontaneous resolution, stable, or slow growing over time. It is highly recommended not to intervene with any asymptomatic epididymal cyst.
- Less than 10 mm – Conservative treatment with 95% natural resolution within 3 years.
- 11-20 mm – Conservative treatment with 66% natural resolution within 3 years. Needle aspiration for symptomatic patients.
- 21-50 mm – 0% natural resolution within 3 years. Needle aspiration for symptomatic patients. Surgical excision is last resort due to fertility risk.

All I can say is, don’t be panic with the cyst. See you in next article!
내 공식 홈페이지를 자유롭게 방문할 수 있습니다 여기.
자주 묻는 질문 (FAQ)
Q1: Is an epididymal cyst dangerous?
No. An epididymal cyst is a benign (non-cancerous) lesion. It contains spermatozoa or seminal fluid and forms as a result of prior injury or inflammation of the epididymis tubule. The vast majority of epididymal cysts are harmless and do not require treatment unless they cause significant discomfort or grow to a large size.
Q2: Do epididymal cysts go away on their own?
Many epididymal cysts resolve spontaneously, particularly smaller ones. Cysts less than 10 mm have a 95% chance of natural resolution within 3 years. Cysts between 11-20 mm have a 66% chance of resolution. However, larger cysts of 21-50 mm have essentially 0% chance of natural resolution and may require intervention if symptomatic.
Q3: When does an epididymal cyst need treatment?
Treatment is generally recommended only when the cyst causes significant symptoms such as persistent scrotal pain or discomfort, or when the cyst is large and growing. Asymptomatic cysts are typically managed conservatively. Needle aspiration is an option for symptomatic cysts, while surgical excision is reserved as a last resort due to the risk of fertility impairment.
Q4: Can an epididymal cyst affect fertility?
An untreated asymptomatic epididymal cyst does not typically affect fertility. However, surgical excision carries a risk of damaging the epididymis and impairing sperm transport. This is why surgery is considered only as a last resort for large, symptomatic cysts.
Q5: How is an epididymal cyst diagnosed?
Epididymal cysts are most commonly discovered incidentally during scrotal self-examination or detected on scrotal ultrasound. Ultrasound is the gold standard imaging tool for diagnosing and characterizing epididymal cysts, confirming their benign nature and measuring their size. A urologist will assess the findings and recommend the appropriate management plan.
If you have discovered a scrotal lump or been told you have an epididymal cyst and would like a specialist evaluation, Dr. Soarawee Weerasopone offers consultations at Bangkok Hospital Headquarters. 진료 예약.
면책 조항: 본 내용은 방콕 병원 본사의 전문의인 Soarawee Weerasopone 박사가 작성하고 검토한 것입니다. 교육 목적으로만 제공되며 의학적 조언을 구성하지 않습니다. 모든 의학적 치료를 시작하기 전에 항상 자격을 갖춘 의료 전문가와 상담하십시오.
의학적으로 작성 및 검토됨: 소아라위 위라소폰 박사(폼 박사) — 방콕 병원 본원 비뇨의학과 전문의. 국제 펠로우: 베일러 의과대학(미국) · 준텐도 대학(일본) · 창궁 기념 병원(대만).

소라위 위라소폰 박사 (폼 박사)는 방콕 병원 본원의 비뇨의학과 전문의이며, 남성 건강, 로봇 수술 (다빈치 시스템), 요석 치료를 전문으로 합니다. 미국 베일러 의과대학, 일본 순텐도 대학 병원, 대만 창강 기념 병원에서 국제 펠로우십을 마쳤습니다. 이 사이트의 모든 의학 콘텐츠는 소라위 박사의 임상 경험과 국제 교육을 바탕으로 작성 및 검토됩니다.

