Testicular Lumps: Causes and Concerns for Men - Urology

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There is a lump below the testicle?


Recently, I noticed a lump below my left testicle, approximately the size of a mung bean.
The area on the right side is less pronounced and feels uneven to the touch.
I'm not sure if it's just my perception, but it seems that the lump on the left testicle appears larger during masturbation.
Could this be due to my frequent masturbation, averaging twice a day? Is there any potential danger associated with this?

A A, 20~29 year old female. Ask Date: 2014/04/29

Dr. Xu Weikai reply Urology


Hello, the lesion in the scrotum requires an ultrasound examination.
If it originates from the testis, the likelihood of malignancy exceeds 90%.
If it comes from other organs or tissues, such as the epididymis or vas deferens, over 90% are benign.
If there are any unclear points, feel free to ask again for further discussion and research.
Answers found online should only be used as a reference; it is essential to seek medical attention at a healthcare facility if necessary.
This message is from Dr.
Hsu Wei-Kai, Director of the Urology Department, Taitung Hospital, Ministry of Health and Welfare.

Reply Date: 2014/04/29

More Info


When it comes to testicular lumps, it is essential to approach the situation with caution and awareness. The presence of a lump or swelling in the testicular area can be concerning, and while many causes are benign, some may require medical attention.
Firstly, the lump you described on the left testicle, which feels about the size of a green bean, could be due to several factors. Common benign causes include epididymal cysts, which are fluid-filled sacs that can develop on the epididymis (the tube that carries sperm). These cysts are usually painless and do not require treatment unless they cause discomfort. Another possibility is a varicocele, which is an enlargement of the veins within the scrotum and can feel like a "bag of worms." Varicoceles are often associated with infertility but are generally not dangerous.

On the other hand, testicular lumps can also indicate more serious conditions, such as testicular cancer. Testicular cancer is relatively rare but is most common in younger men. It typically presents as a painless lump or swelling in the testicle. Other symptoms may include a feeling of heaviness in the scrotum, changes in the size or shape of the testicle, or discomfort in the testicular area.
Regarding your concern about frequent masturbation, it is unlikely that this practice is the direct cause of the lump. Masturbation is a normal sexual activity and, when done in moderation, is generally considered safe. However, excessive or aggressive masturbation can lead to temporary discomfort or irritation, but it should not cause structural changes like lumps.

Given your symptoms, it is crucial to consult a healthcare professional for a thorough examination. A doctor will likely perform a physical examination and may recommend an ultrasound to assess the nature of the lump. This imaging test can help differentiate between benign and potentially malignant conditions.
In the meantime, monitor any changes in the lump's size, shape, or associated symptoms such as pain or discomfort. If you notice any rapid changes or if the lump becomes painful, seek medical attention promptly.
In summary, while many testicular lumps are benign, it is essential to have any new or concerning lumps evaluated by a healthcare provider. Early diagnosis and treatment are key to managing any potential issues effectively. Remember, your health is paramount, and seeking medical advice is always a prudent step when it comes to changes in your body.

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