Changes During Puberty

Learn how your child will change during his teen years.

Our expert answers some common questions about puberty in boys.

Gynecomastia most commonly is related to the hormonal changes found with puberty, and tends to go away on its own with time.

Find out whether there is a point at which "developing" girls need to start wearing bras.

Breast development during puberty occurs in about 70 percent of boys. Get information about this embarrassing problem.

It can be "normal" for a girl to skip a few months of periods, especially early on. But when is it a cause for concern?

An 11-year-old is bewildered by the changes happening to her body.

The athletic feats that a young female skater can perform are not so easy once she matures.

Find out at what point asymmetric breast development should be evaluated.

Girls start to show signs of puberty earlier than in the past, but at what age are they premature?

Many girls have varied periods for up to two years after their first period. There may be several months in a row without any period, especially during the first year after menarche.

Our expert explains what breast buds are in early puberty and how to help girls with breast pain and growth.

Get some advice on how to explain the changes of puberty and menstruation to an 11-year-old girl.

A single dad gets some advice about girls and puberty.

Our expert addresses some common questions about menstrual flow and tampon use in young teens.

It's important to have an open dialogue with your daughter and her physician about all aspects of her medical care, particularly as she transitions into adulthood.

A mother is concerned about her daughter's severe acne and asks what treatment is best.

The age at which a girl will start to menstruate is quite variable -- find out the normal range.