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Published on: 8/20/2026
What could a pea-sized lump between the anus and scrotum indicate, and should it be evaluated by a healthcare professional?
A pea-sized lump between the anus and scrotum (the perineum) is often benign, such as a lipoma (a soft fatty growth) or accessory tissue. However, it can also indicate an infection, an abscess, a cyst, or genital warts caused by HPV. Because causes range from harmless to those requiring treatment, evaluation by a healthcare professional is recommended.
Key possible causes include:
- Lipoma or benign cyst
- Skin infection or abscess
- Genital warts (HPV)
- Blocked gland or ingrown hair
Since a lump in this sensitive area can have many overlapping causes, guessing isn't safe—but a doctor's visit isn't always your first step. Take a free, instant, online symptom check to get a clearer picture of what may be causing your lump and personalized guidance on whether to monitor at home or see a specialist next.
Reviewed for medical accuracy: 07/15/2026
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Frequently Asked Questions
4 answersThe most common questions people search after this page
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Concerned about your symptoms?
Explanation
A small lump in the area between your anus and scrotum can be caused by different things. One possibility is a benign, non-cancerous growth made of fatty tissue, which is called a lipoma. Sometimes, a rare condition called an accessory scrotum can create extra tissue in that area. Other times, such a lump could be due to an infection that forms a small abscess or even be related to genital warts. Even if the lump is small and does not hurt, it is important to have it evaluated by a doctor. Before your appointment, you can use a free AI symptom checker to help you understand possible causes and prepare better questions for your healthcare provider. A healthcare professional will look at the lump and ask about any changes, pain, or other symptoms you might have. They might also perform tests to be sure it is nothing serious. Early evaluation can help rule out any problems and give you peace of mind, ensuring that any required treatment is treated in good time.
(References)
Lee JI, Jung HG. Perineal accessory scrotum with a lipomatous hamartoma in an adult male. J Korean Surg Soc. 2013 Dec;85(6):305-8. doi: 10.4174/jkss.2013.85.6.305. Epub 2013 Nov 26. PMID: 24368990; PMCID: PMC3868684.
Stonier T, Simson N, Challacombe B. Diagnosing testicular lumps in primary care. Practitioner. 2017 Apr;261(1803):13-7. PMID: 29020728.
Leslie SW, Sajjad H, Kumar S. Genital Warts. [Updated 2023 May 30]. In: StatPearls [Internet].
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