Penis Size and Hormonal Influence in Young Men - Urology

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I would like to ask, I am 22 years old, but my penis is only 1 to 2 centimeters when not erect and is covered by the foreskin, and it retracts inward.
When erect, it is about 4 to 6 centimeters.
If I take male hormones, will it grow? It seems like it hasn't changed since I was young, and I don't have much body hair, such as underarm hair, arm hair, leg hair, or facial hair.
Is this a sign of a deficiency in male hormones?

Cai Xiansheng, 20~29 year old female. Ask Date: 2016/11/03

Dr. Sun Hongshun reply Urology


Hello, this is indeed different from others.
Please schedule the relevant examinations at the urology outpatient clinic.
Wishing you good health.

Reply Date: 2016/11/03

More Info


Understanding penis size and hormonal influence in young men is a multifaceted topic that involves genetics, hormonal levels, and overall health. At 22 years old, it is understandable to have concerns about penis size, especially if you feel that your development has not progressed as expected compared to peers.
Firstly, it is important to recognize that penis size can vary significantly among individuals and is influenced by a variety of factors, including genetics and hormonal levels. The average erect penis size is typically around 5 to 6 inches in length, but many men fall outside of this range. Your reported size, particularly the non-erect size of 1-2 cm, is indeed below average, and it is natural to feel concerned about this.

The presence of minimal body hair, such as lack of underarm hair, leg hair, and facial hair, can be indicative of lower testosterone levels. Testosterone is the primary male sex hormone responsible for the development of secondary sexual characteristics, including body hair, muscle mass, and the growth of the penis. If you are experiencing a lack of these characteristics, it may suggest that your body is not producing adequate levels of testosterone, which could be contributing to your concerns about penis size.

Regarding your question about whether testosterone supplementation could lead to further growth, it is essential to understand that testosterone therapy is typically most effective when administered during puberty or early adolescence, when the body is still developing. After puberty, the potential for physical growth, including penis size, is significantly reduced. However, testosterone therapy can still have benefits, such as increasing libido, improving mood, and enhancing muscle mass, but it may not necessarily lead to an increase in penis size if the growth plates have already closed.

It is also crucial to consider that the use of testosterone therapy should be approached with caution. Hormone replacement therapy can have side effects and risks, including potential cardiovascular issues and an increased risk of certain cancers. Therefore, it is vital to undergo a thorough evaluation by a healthcare professional, including blood tests to assess your hormone levels, before considering any form of hormone therapy.

If you suspect that you may have a hormonal imbalance or a condition such as Klinefelter syndrome (characterized by an extra X chromosome, which can lead to underdeveloped sexual characteristics), it is advisable to consult with an endocrinologist or a urologist. They can perform the necessary tests, including genetic testing if needed, to determine the underlying cause of your symptoms.

In summary, while concerns about penis size and hormonal influence are valid, it is essential to approach this issue holistically. Consulting with a healthcare professional can provide clarity on your hormonal levels and overall health, and they can guide you on the best course of action. Remember that self-acceptance and understanding that everyone develops at their own pace is also an important aspect of this journey.

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