Normal Penis Size and Concerns for Teen Boys - Urology

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Hello, doctor?


Hello, doctor.
My son is almost 14 years old, and while he was sleeping, I noticed that even when his penis is fully erect, its circumference is only about 1.3 to 1.5 cm.
Is this considered a normal width? He has a slightly overweight physique; could that affect this? He has complete phimosis, and even when erect, the glans is not visible.
Should I be concerned? Thank you.

Bo, 10~19 year old female. Ask Date: 2012/12/08

Dr. Xu Weikai reply Urology


Hello, regarding your question, has he already developed? Specifically, has he entered puberty? Generally, the reproductive system develops during puberty.
As for size, it is necessary to consult a physician for an accurate diagnosis.
If there are any unclear points, feel free to ask again so we can further discuss and research.
Information from the internet should only be used as a reference; if necessary, it is important to seek medical attention at a healthcare facility.
This message is from Dr.
Hsu Wei-Kai, Director of Urology, Taitung Hospital, Department of Health, Executive Yuan.

Reply Date: 2012/12/08

More Info


When it comes to understanding the normal size of the penis and addressing concerns for teenage boys, it's essential to recognize that there is a wide range of what is considered "normal." During puberty, which typically occurs between the ages of 9 and 14 for boys, significant physical changes take place, including the growth of the penis and testicles, as well as the development of secondary sexual characteristics.

1. Normal Size Range: For boys around the age of 13 to 14, the average erect penis size is generally reported to be between 12 cm to 16 cm in length and around 10 cm in circumference. Your son's erect penis size of approximately 1.3 cm to 1.5 cm in circumference falls within the lower range of normal, but it is important to note that individual variations exist. Factors such as genetics, overall health, and body composition can influence size.

2. Body Type Influence: You mentioned that your son has a "meatier" body type. While body composition can affect the appearance of the penis, it does not directly influence its actual size. Fat distribution can sometimes make the penis appear smaller than it is, especially if there is a significant amount of body fat in the pubic area. Encouraging a healthy lifestyle with balanced nutrition and regular exercise can help manage body weight and improve overall health.

3. Phimosis Concerns: You indicated that your son has a condition known as phimosis, where the foreskin cannot be retracted to reveal the glans (head) of the penis, even when erect. This condition is relatively common in boys and often resolves on its own as they grow older. However, if it causes discomfort, pain, or hygiene issues, it may be worth consulting a pediatric urologist. They can assess whether any treatment is necessary, which could range from topical steroid creams to, in some cases, surgical options.

4. Developmental Timeline: It is also important to consider that puberty progresses at different rates for each individual. Some boys may experience rapid growth in penis size and other secondary sexual characteristics, while others may develop more slowly. If your son has not yet experienced other signs of puberty, such as voice changes or the growth of pubic hair, he may still be in the earlier stages of development.

5. Psychological Impact: Adolescence can be a challenging time, and concerns about body image and size can lead to anxiety or self-esteem issues. Open communication with your son about these changes and reassuring him that everyone develops at their own pace can be beneficial. Encourage him to focus on his overall health and well-being rather than comparing himself to peers.

6. When to Seek Help: If you have ongoing concerns about your son's development, size, or any discomfort he may be experiencing, it is advisable to consult a healthcare professional. A pediatrician or urologist can provide a thorough evaluation and offer guidance tailored to your son's specific situation.

In summary, while your son's penis size may be on the smaller side of the average range, it is essential to consider the broader context of his overall health, body type, and developmental stage. Phimosis is a common condition that may not require immediate intervention but should be monitored for any complications. Open dialogue about these changes can help alleviate concerns and promote a healthy self-image during this critical developmental period.

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