Puberty is the stage of adolescence when your child begins to develop physically into an adult. During puberty, a girl's breasts begin to grow. As the breasts develop, problems like lumps or infections sometimes happen. These problems can be alarming. But they are common and rarely serious.

PCOS is an imbalance of hormones. It affects the ovaries. The ovaries are the organs that store a woman's eggs. PCOS can also affect the rest of the body. PCOS can lead to serious health issues if not treated. Treatment can't cure the problem, but it helps reduce symptoms and prevent health problems.

Menstruation can be a confusing and even embarrassing topic for girls and their parents to discuss. But it doesn't have to be. This sheet gives basic facts about periods. It also helps answer common questions a girl might have.

Puberty can be a confusing time for both parents and children. Both you and your child may be uncomfortable talking about sex and body changes. Here are some answers to some common questions you may have.

Your child has reached the stage of adolescence called puberty. During this stage, your child’s body begins to develop and gain sexual maturity. This sheet tells you what to expect during this stage of your child’s growth and development.

Your child has reached the stage of adolescence called puberty. During this stage, your child’s body begins to develop and become sexually mature. This sheet tells you what to expect during this stage of your child’s growth and development.

If your child spends a lot of time in the water and is having ear pain, he or she may have developed otitis externa. This is also known as "swimmer's ear."

Your child's throat feels sore. This is likely because of redness and swelling of the throat.

During a breath-holding spell, your child holds their breath for a while before briefly losing consciousness. Breath-holding spells often happen after a trauma or an emotional upset. They occur most often in children under age 3. They can be scary for both parents and children. But they usually aren't a serious problem. And they often stop by the time a child is 5 or 6 years old.

Nosebleeds are common in children. They usually aren't a sign of a serious problem. You can treat most nosebleeds at home. And you can take steps to help your child prevent them.