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Sexually Transmitted Infections (STIs) What are sexually transmitted infections (STIs)? STIs are infections passed from person to person through sexual contact. They may also be called STDs for sexually transmitted diseases. Millions of new cases are diagnosed every year in the U

Bone Marrow Transplant for Children What is a bone marrow transplant for children? A bone marrow transplant (BMT) is a treatment for children with certain types of cancer or other diseases. The goal of BMT is to replace a child’s diseased bone marrow with healthy bone marrow

Food Allergy What is a food allergy? A food allergy is when your immune system has a bad reaction to a certain food. This is different from a food intolerance, which does not involve the immune system. This is true even though some of the same signs may be present. What causes a

Head Injury in Children What is a head injury in children? A head injury is any kind of damage to the scalp, skull, brain, or other tissue and blood vessels in the head. A head injury is also often called a brain injury or traumatic brain injury (TBI), depending on the extent of

Tricuspid Atresia What is tricuspid atresia? Tricuspid atresia (TA) is a heart defect present at birth (congenital). It occurs when the tricuspid valve doesn’t form, or only partly forms. Normally the tricuspid valve is located between the right upper chamber (atrium) and the

Pharyngitis and Tonsillitis in Children What are pharyngitis and tonsillitis in children? Pharyngitis is redness, pain, and swelling of the throat (pharynx). Tonsillitis is inflammation of the tonsils. The tonsils are a pair of tissue masses on both sides at the back of the

Warts in Children What are skin warts in children? Warts on the skin are small, noncancerous skin growths. They are caused by a virus. Warts can spread to other parts of the body and to other people. What causes skin warts in a child? Warts are caused by a type of human

Supporting Your Child with a Mental Health Condition Mental health conditions don’t discriminate. They can affect anyone at any age—and when your child is the one diagnosed, it can bring up a lot of emotions. You might feel sad, confused, overwhelmed, or helpless. Know that these

Polycystic Ovary Syndrome (PCOS) What is polycystic ovary syndrome (PCOS)? Polycystic ovary syndrome (PCOS) is a set of symptoms caused by a problem with a woman’s hormones. It affects the ovaries. These are the small organs that store a woman’s eggs. But it can also affect the

Male Infertility What is male infertility? Infertility is a disease of the reproductive system. It makes a person unable to have children. It can affect a man, a woman, or both. Male infertility means that a man has a problem with his reproductive system. It means you can't start