Why Am I 18 and Still Have Uneven Pubic Hair Growth? - Urology

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I want to ask the doctor why, at 18 years old and in my second year of college, I still haven't developed a full growth of pubic hair?


I want to ask the doctor why, at 18 years old and in my second year of college, I still haven't developed full pubic hair.
Will this cause me any issues?

Xiao Cheng, 10~19 year old female. Ask Date: 2004/11/19

Dr. Lai Ronghao reply Urology


Hello Xiaocheng: I am not sure what you mean by your pubic hair not being fully grown.
Is it sparse? Is it unruly? Or is there no pubic hair at all? It would be best to come to the hospital for an examination.
Sincerely, Dr.
Lai Ronghao, Attending Physician, Urology Department, Hsinchu Hospital, Department of Health, Executive Yuan.

Reply Date: 2004/11/19

More Info


At 18 years old, it is not uncommon to experience uneven pubic hair growth. Pubic hair, like other body hair, goes through various growth phases: the anagen (growth), catagen (transitional), and telogen (resting) phases. Each hair follicle operates independently, meaning that some hairs may grow faster or thicker than others, leading to unevenness.
During puberty, which typically occurs between the ages of 9 and 14 for boys, the body undergoes significant hormonal changes, primarily driven by testosterone. This hormone is responsible for the development of secondary sexual characteristics, including the growth of pubic hair. The timing and extent of these changes can vary widely among individuals. Some may experience rapid hair growth, while others may have a slower progression.
By the age of 18, most males will have completed the majority of their pubertal development, but it is important to note that full maturation can continue into the early twenties. Factors such as genetics, hormonal levels, and overall health can influence the growth and distribution of body hair. If you have a family history of delayed hair growth or if your overall development appears to be on track, it is likely that your pubic hair will continue to develop over time.

If you are concerned about the unevenness of your pubic hair or if you notice other signs of delayed development, such as a lack of other secondary sexual characteristics (like voice deepening, growth of facial hair, or changes in body composition), it may be beneficial to consult a healthcare professional. They can assess your overall development and determine if any underlying hormonal issues need to be addressed.

In summary, uneven pubic hair growth at 18 is generally considered normal and can be attributed to the natural variability in individual development. However, if there are additional concerns regarding your sexual development or if you experience significant distress about your body image, seeking medical advice can provide reassurance and guidance. Remember, everyone's body develops at its own pace, and what is most important is maintaining a healthy lifestyle and being patient with your body's natural progression.

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