Testicular Size Discrepancies: Should You Be Concerned? - Urology

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One testicle is larger than the other since childhood?


Hello, my testicles have been uneven in size since childhood, with one being larger than the other.
However, I have never experienced any pain or discomfort, nor any sensation of heaviness.
Recently, I saw news reports discussing the possibility of testicular cancer associated with abnormal swelling.
Therefore, I would like to ask the doctor if there is any cause for concern, or if I should not be worried.
Thank you.

Nǐ hǎ, 20~29 year old female. Ask Date: 2016/11/12

Dr. Du Shixi reply Urology


Hello: If you have had this condition since childhood, I recommend that you visit a urology department for an examination.
Start paying attention to any swelling, lumps, etc.
Clinically, if there is testicular cancer, it tends to progress rapidly, often presenting issues within a few months, but such cases are not very common (which is why they attract media attention).
However, it is always good to be aware of your body, but there is no need to worry excessively.
If you have any concerns, just make a trip to the hospital.
Thank you for your inquiry.

Reply Date: 2016/11/12

More Info


When it comes to concerns about testicular size discrepancies, it's important to first understand that variations in size between the two testicles can be quite common and are often not indicative of any serious medical condition. Many men naturally have one testicle that is slightly larger or hangs lower than the other, and this is typically normal. However, your awareness of potential issues, such as testicular cancer, is valid and worth discussing.

Testicular cancer is relatively rare, but it can occur, particularly in younger men. The signs to watch for include a lump or swelling in one testicle, a change in size or shape, or any discomfort or pain. Since you mentioned that you have not experienced any pain, discomfort, or a feeling of heaviness, these are positive indicators. However, it's always best to remain vigilant and proactive about your health.

The fact that you have noticed a size difference since childhood and that it has not changed significantly or caused any discomfort is reassuring. Many men have asymmetrical testicles, and unless there are accompanying symptoms such as pain, swelling, or changes in texture, it is usually not a cause for concern.
That said, if you notice any sudden changes in size, shape, or if you develop any new symptoms, it would be wise to consult a healthcare professional. They may perform a physical examination and, if necessary, an ultrasound to assess the situation further. An ultrasound is a non-invasive imaging technique that can help determine if there are any abnormalities within the testicles.

In terms of cancer risk, while testicular cancer can present with a mass or swelling, it is important to note that not all lumps or size discrepancies are cancerous. Other conditions, such as epididymal cysts, varicoceles, or hydroceles, can also cause changes in size or shape of the testicles. These conditions are generally benign and can often be treated if they cause discomfort.

For your peace of mind, regular self-examinations of your testicles can be beneficial. This involves checking for any lumps, swelling, or changes in size or shape. It is recommended to perform these examinations monthly, ideally after a warm shower when the scrotum is relaxed. If you notice any changes, it is advisable to seek medical advice promptly.

In summary, while it is understandable to have concerns about testicular size discrepancies, especially in light of media reports about cancer, your situation does not appear to warrant immediate concern based on the information provided. Maintaining regular check-ups with your healthcare provider and being aware of any changes in your body will help ensure your health remains a priority. If you have any lingering doubts or if your situation changes, do not hesitate to reach out to a medical professional for further evaluation.

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