Does Obesity Affect Penis Size? the Impact on Young Men - Urology

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Hello, I am currently 22 years old, but I have noticed that my erection is only about 6 centimeters, which is the same as when I was in middle school.
I am 170 cm tall and weigh 82 kg.
I read online that obesity can also be a cause of a shorter penis.
My belly has also become quite large.
However, can it really make that much of a difference? I weighed only 68 kg in middle school, and I often engage in masturbation.
Does obesity really affect the size by that much?

Xiao Ming, 20~29 year old female. Ask Date: 2008/01/21

Dr. Zhang Chengye reply Urology


Hello, sexual ability is not related to size, so don't worry about it.
As long as you can achieve an erection and all functions are normal, there is no need to be overly concerned.
If you are still worried, please visit a urology clinic for further examination.

Reply Date: 2008/01/21

More Info


Obesity can indeed have an impact on various aspects of male reproductive health, including the perception of penis size. While the actual size of the penis is primarily determined by genetic factors and hormonal influences during puberty, obesity can create a visual illusion that may affect how penis size is perceived.

When a man is overweight, particularly with excess fat around the abdomen, this can lead to a condition known as "penile concealment." This occurs when the fat pad in the pubic area increases, making the penis appear shorter than it actually is. In some cases, the penis may be partially buried under the fat, leading to a significant difference in perceived size compared to when a man is at a healthier weight. This is particularly relevant for young men who are still developing and may be self-conscious about their bodies.

In your case, at 22 years old and weighing 82 kg with a height of 170 cm, it is possible that the excess abdominal fat is contributing to the perception of a smaller penis size. When you were 68 kg in middle school, the reduction in body fat likely allowed for a more visible penis, which could explain the difference you are noticing now.
Additionally, obesity can lead to hormonal changes in the body. Fat tissue can convert androgens (male hormones) into estrogens (female hormones), potentially disrupting the balance of hormones that are crucial for male sexual development. This hormonal imbalance can affect libido, erectile function, and overall sexual health. However, it is important to note that while obesity can influence these factors, it does not directly change the anatomical size of the penis itself.

Regarding your concerns about self-pleasure and its effects on size, it is essential to understand that masturbation does not affect penis size. The size of the penis is determined by genetics and hormonal levels, and engaging in sexual activity or self-pleasure does not alter these factors.

If you are concerned about your weight and its impact on your health, including sexual health, it may be beneficial to consult with a healthcare professional. They can provide guidance on healthy weight loss strategies, which typically include a balanced diet and regular exercise. Losing weight can help reduce the fat pad around the pubic area, potentially improving the visibility of the penis and enhancing overall confidence.

In summary, while obesity does not directly change the size of the penis, it can create a visual perception of a smaller size due to fat accumulation in the abdominal area. Addressing obesity through lifestyle changes can improve not only physical appearance but also overall health and well-being. If you have further concerns, especially regarding hormonal health or sexual function, seeking advice from a urologist or an endocrinologist may provide additional insights and support.

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