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Voice Disorders What are voice disorders? You may have a voice disorder if you have a problem with pitch, volume, tone, and other qualities of your voice. These problems occur when your vocal cords don't move or vibrate normally. Your voice is the sound that air makes when it is

Color Blindness What is color blindness? Color blindness is when you see colors differently than most people do. The retina is the light-sensitive lining in the back part of your eye. It sends visual information to your brain. Your retina has special cells that detect color

Erectile Dysfunction (Impotence) What is erectile dysfunction? Erectile dysfunction (ED) or impotence means you can’t get an erection. It can also mean you aren't happy with the size or hardness of your erections, or how long your erections last. In the past, ED was thought to be

Vaginitis What is vaginitis? Vaginitis is any inflammation or infection of the vagina. It's common in women of all ages. About 1 in 3 women have vaginitis at some time in their lives. What causes vaginitis? Bacteria, yeast, viruses, parasites, and chemicals in creams or sprays

Coronary Heart Disease What is coronary heart disease? Coronary heart disease happens when the innermost layer of the coronary arteries becomes inflamed and narrowed. This is caused by a buildup of fatty deposits called plaque. These deposits may start in childhood and continue

Poison Ivy, Oak, and Sumac Rash What is poison ivy, oak, and sumac rash? Poison ivy, poison oak, and poison sumac are types of American plants. They each grow in different parts of the country. The plants cause allergic contact dermatitis in most people who touch them. The rash

Hepatitis in Children What is hepatitis in children? Hepatitis is an inflammation of the liver. It can damage and destroy liver cells. What causes hepatitis in a child? Hepatitis in children can be caused by many things. Your child can get hepatitis by being exposed to a virus

Osteogenesis Imperfecta in Children What is osteogenesis imperfecta in children? Osteogenesis imperfecta (OI) is a rare inherited (genetic) bone disorder that is present at birth. It's also known as brittle bone disease. A child born with OI may have soft bones that break

Psoriasis What is psoriasis? Psoriasis is a long-term (chronic) skin condition. It causes inflamed, red, raised areas of skin (plaques). The plaques itch and can be painful. The condition most often occurs on the scalp, elbows, knees, and lower back. What causes psoriasis

Dysphagia in Children What is dysphagia in children? Dysphagia means trouble swallowing. This condition happens when food or liquids can't pass easily from your child's mouth into the throat, down the esophagus, and into the stomach when swallowing. What causes dysphagia in a