Painful Scrotal Lumps: Causes and Concerns - Urology

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Hello: Two years ago, I accidentally discovered a small lump in my right scrotum that was painful to touch.
A few days later, a small protrusion appeared on my right testicle.
Initially, applying pressure caused some pain, but it gradually improved.
After about a week, this lump slowly disappeared.
What could this be? Why did this happen? Thank you.

Jīniús, 10~19 year old female. Ask Date: 2002/04/24

Dr. Liu Jianting reply Urology


Could it be an issue with the epididymis? In fact, most lesions within the scrotum can be detected, but it is essential to seek medical attention only when symptoms arise; otherwise, the cause may go undiagnosed.
I recommend that the next time this occurs, you promptly visit a hospital to consult a urologist for an examination.

Reply Date: 2002/04/24

More Info


When it comes to painful scrotal lumps, there are several potential causes that one should consider. The scrotum houses the testicles and is susceptible to various conditions that can lead to lumps or swelling. Based on your description, it seems that you experienced a painful lump in the right side of your scrotum that eventually resolved on its own. Here are some possible explanations for what you might have encountered:
1. Epididymal Cyst or Spermatocele: These are fluid-filled sacs that can develop in the epididymis, which is the coiled tube located at the back of the testicle. They are usually painless but can become uncomfortable if they grow large or become inflamed. The fact that your lump was painful initially but then resolved could suggest that it was an inflamed cyst.

2. Testicular Torsion: This is a serious condition that occurs when the spermatic cord becomes twisted, cutting off the blood supply to the testicle. This typically presents with sudden, severe pain and swelling. However, since your lump resolved and did not recur, this is less likely to be the cause.

3. Infection or Inflammation: Conditions such as epididymitis (inflammation of the epididymis) or orchitis (inflammation of the testicle) can cause painful lumps. These conditions are often associated with infections, including sexually transmitted infections. If the pain was accompanied by other symptoms like fever or discharge, this could be a possibility.

4. Varicocele: This is an enlargement of the veins within the scrotum, similar to varicose veins in the legs. It can cause a dull ache or discomfort and may be more noticeable when standing or during physical activity.

5. Hernia: An inguinal hernia occurs when tissue, such as part of the intestine, protrudes through a weak spot in the abdominal muscles. This can create a lump in the scrotal area and may cause discomfort, especially when straining.

6. Tumors: While less common, testicular tumors can present as lumps in the scrotum. These can be benign or malignant. The key distinguishing factor is that tumors typically do not resolve on their own and may be associated with other symptoms.

Given that your lump resolved after a week, it is likely that it was a benign condition, such as an epididymal cyst or a transient inflammatory process. However, it is essential to monitor for any recurrence of symptoms or new lumps. If you experience any of the following, you should seek medical attention promptly:
- Persistent or worsening pain
- New lumps or swelling in the scrotum
- Changes in the size or shape of the testicles
- Accompanying symptoms such as fever, chills, or discharge
In conclusion, while many scrotal lumps are benign and self-limiting, it is crucial to maintain awareness of your body and consult a healthcare professional if you have concerns. Regular self-examinations of the testicles can help you detect any changes early, and discussing any findings with a doctor can ensure appropriate evaluation and treatment if necessary.

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