Early Development in Girls: Signs and Concerns - Obstetrics and Gynecology

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Precocious puberty


Hello, doctor: After the summer vacation, my eldest child will be in sixth grade.
Last night, before going to bed, she asked me when body hair would start to grow.
I started developing it in high school, but to my surprise, my eldest said she already has some pubic hair.
I'm shocked that she has secondary sexual characteristics without having started menstruation yet.
Does this mean she won't grow taller? Her height is 153 cm.
Thank you.

huanzhe, 40~49 year old female. Ask Date: 2014/07/16

Dr. Lin Wenbin reply Obstetrics and Gynecology


Generally, pubic hair and breast development occur first, followed by the onset of menstruation and underarm hair growth.
However, this is not absolute.
It is advisable to consult a clinic for a check-up.
Even after menstruation begins, growth in height can still occur.
There's no need to be overly anxious.
It's important to maintain regular exercise and a normal daily routine to ensure healthy physical development.

Reply Date: 2014/07/16

More Info


Early development in girls, particularly the emergence of secondary sexual characteristics, can be a source of concern and confusion for both parents and children. The onset of puberty typically occurs between the ages of 8 and 13 for girls, with the average age being around 11. However, variations exist, and some girls may begin to show signs of puberty earlier than others.
In your case, it is noteworthy that your daughter, who is in the sixth grade, has already begun to develop some pubic hair, which is one of the first signs of puberty. This can happen even before the onset of menstruation, which is often the next significant milestone in female puberty. The presence of pubic hair indicates that her body is undergoing hormonal changes, primarily driven by the release of estrogen and other hormones from the ovaries.
It's important to understand that the development of secondary sexual characteristics, such as breast development and the growth of pubic hair, does not necessarily correlate with the cessation of growth in height. In fact, girls typically experience a growth spurt during puberty, which can occur before or after the onset of menstruation. The growth plates in the bones, which determine height, do not close until later in puberty, usually after menarche (the first menstrual period). Therefore, even if your daughter has begun to develop pubic hair, she may still have significant growth potential ahead of her.

If you are concerned about her early development, it may be beneficial to consult a pediatrician or an endocrinologist who specializes in growth and puberty. They can assess her growth patterns, check her bone age through an X-ray, and evaluate hormone levels if necessary. This can help determine if her development is within the normal range or if there are any underlying concerns that need to be addressed.

Additionally, it is crucial to provide emotional support to your daughter during this time. Puberty can be a confusing and sometimes challenging period for children, as they navigate physical changes and the accompanying social dynamics. Encouraging open communication about her feelings and experiences can help her feel more comfortable and supported.
In summary, early signs of puberty, such as the development of pubic hair, can occur before menstruation and are generally a normal part of growth. Height growth can continue even after these signs appear, and consulting a healthcare professional can provide reassurance and guidance. Supporting your daughter emotionally during this transitional phase is equally important, as it can help her navigate the complexities of growing up with confidence.

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