Testicular Issues: Concerns About Size and Position

Testicular issues?

I have a question.
Why do my testicles appear to be retracted into the skin when I am sitting, making them look flat? When I stand, they seem to hang down and I can see their shape.
However, when I have an erection, the skin pulls tighter and my testicles become less visible.
My girlfriend mentioned that my testicles are small compared to my penis, and I'm worried that this might be a sign of cryptorchidism.

Erwin, 10~19 year old female. Ask Date: 2004/08/10

Dr. Cai Bingkun reply Urology

The scrotum is commonly referred to as the "treasure bag," as each side contains four important structures: the testis, epididymis, vas deferens, and seminal vesicle.
Typically, the size of these structures in an adult is approximately 4 x 3.5 x 2 cm.
If these structures can be palpated within the scrotum, it indicates that there is no cryptorchidism.
However, if there are still concerns regarding the testicles, it is advisable to visit a urology clinic for further examination.

Reply Date: 2004/08/10

More Info

When it comes to concerns about testicular size and position, it's important to understand that variations in anatomy are quite common and can be influenced by several factors, including genetics, hormonal levels, and even temperature. The testicles are typically housed in the scrotum, which is designed to keep them at a temperature slightly lower than the body's core temperature, essential for optimal sperm production.
In your case, it sounds like you are experiencing a situation where your testicles appear to retract into the body when seated, which can be a normal anatomical variation. This phenomenon can be more pronounced in certain positions, such as sitting, where the scrotum may pull tighter against the body, making the testicles less visible. When standing, gravity allows the testicles to hang lower, which may explain why they are more noticeable in that position.

Regarding your concerns about size, it's important to note that testicular size can vary significantly among individuals. The average size of an adult testicle is approximately 3 to 5 centimeters in length and 2 to 3 centimeters in width. If your testicles are smaller than average, it may not necessarily indicate a medical issue, especially if they are symmetrical and there are no accompanying symptoms such as pain or swelling.

Your mention of a partner commenting on the size of your testicles and penis can be distressing, but it's crucial to remember that sexual health and satisfaction are not solely determined by size. Communication with your partner about preferences and desires can often lead to a more fulfilling sexual experience, regardless of anatomical variations.

The concern about cryptorchidism (undescended testicles) is valid, particularly if you have a history of this condition or if your testicles have never descended into the scrotum. Cryptorchidism is typically diagnosed in infancy or early childhood, and it can lead to complications such as infertility or an increased risk of testicular cancer if left untreated. If you suspect that you may have undescended testicles, it would be advisable to consult a healthcare professional for a thorough examination.

In summary, while variations in testicular size and position can be concerning, they are often normal anatomical differences. If you have specific worries about your testicular health, such as pain, swelling, or significant changes in appearance, it would be prudent to seek medical advice. A healthcare provider can perform a physical examination and may recommend an ultrasound or other imaging studies if necessary to ensure everything is functioning properly. Remember, open communication with your partner and healthcare provider is key to addressing any concerns you may have about your sexual health.

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