Soft Lumps in the Scrotum: Causes and Concerns - Urology

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Cyst-like lesions


Hello, doctor! Last week, I wore jeans while hiking, and the humid weather may have caused something that looks like acne to appear on my scrotum.
I didn't pay much attention to it, and it resolved after two days.
However, a soft lump similar to a cyst has developed under the skin.
It feels a bit soft, is firm to the touch, and is not painful with no open wounds.
Could this be a symptom of folliculitis resolving? Please advise, thank you!

zaba, 30~39 year old female. Ask Date: 2008/10/30

Dr. Xu Weikai reply Urology


Hello, it's hard to say; it's best to take a look.
If it's not convenient to see a doctor, you can observe for a few more days.
If there is no improvement, it would be best to take a photo and bring it to the hospital for the physician's reference.
If there are any unclear points, feel free to ask again, and we can discuss and research further.
Sincerely, Dr.
Hsu Wei-Kai, Director of Urology, Taitung Hospital, Department of Health, Executive Yuan.

Reply Date: 2008/10/30

More Info


Understanding soft lumps in the scrotum can be concerning, especially when they appear suddenly and without pain. Based on your description, it seems you experienced a soft lump that developed after a period of sweating and friction from wearing jeans while hiking. This scenario raises a few possibilities regarding the nature of the lump.

One potential cause of a soft lump in the scrotum is a sebaceous cyst. These cysts are common and can occur when a hair follicle becomes blocked, leading to the accumulation of sebum (the oily substance produced by sebaceous glands). They are typically painless, soft to the touch, and can vary in size. If the cyst becomes inflamed or infected, it may become painful or red, but in your case, since the lump is not painful and has no visible skin changes, it may simply be a benign cyst.

Another possibility is a condition known as a hydrocele, which is a fluid-filled sac surrounding the testicle. Hydroceles can cause swelling in the scrotum and are usually painless. They often resolve on their own, but if they persist or cause discomfort, medical evaluation may be necessary.

Additionally, the lump could be related to a condition called epididymal cysts or spermatocele, which are fluid-filled cysts that develop in the epididymis (the tube that carries sperm). These are also typically painless and may not require treatment unless they cause discomfort or grow significantly.

While you mentioned that the lump appeared after what you suspect might have been a case of folliculitis (inflammation of hair follicles), it is less likely that the lump itself is a direct result of that condition. Folliculitis usually presents as red, inflamed bumps that may be itchy or painful, rather than a soft, non-painful lump.

Given that the lump is soft, non-painful, and has no associated symptoms like redness or warmth, it is likely benign. However, it is essential to monitor the lump for any changes in size, shape, or associated symptoms. If it persists, grows, or becomes painful, it would be prudent to consult a healthcare professional for a thorough evaluation. A doctor may perform a physical examination and, if necessary, imaging studies or a biopsy to rule out any serious conditions.

In summary, while the soft lump in your scrotum may be a benign cyst or hydrocele, it is crucial to keep an eye on it. If you have any concerns or if the lump changes, seeking medical advice is always the best course of action. Regular self-examinations of the scrotum can help you become familiar with what is normal for you, making it easier to notice any changes that may require further investigation.

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