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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

Atrial Septal Defect (ASD) in Children What is an atrial septal defect in children? The atrial septum is the wall between the two upper chambers of the heart (right and left atria). An atrial septal defect (ASD) is an abnormal hole in this wall. ASD is a heart problem that is

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

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

Intussusception in Children What is intussusception in children? Intussusception is a serious problem in the intestine. It occurs when one part of the intestine slides inside another part. The intestine then folds into itself like a telescope. This creates a blockage or

Microcephaly in Children What is microcephaly in children? Gender words are used here to talk about anatomy and health risk. Use this information in a way that works best for you and your doctor as you talk about your care. Microcephaly is a condition where a baby's head is much

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

Pneumonia in Children What is pneumonia in children? Pneumonia is an infection in the lungs. It can be mild or serious. Pneumonia is generally more common in children younger than 5 years old. What causes pneumonia in a child? Pneumonia is most often caused by bacteria or viruses

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

Neuroblastoma What is neuroblastoma in children? Neuroblastoma is cancer that starts when immature nerve cells in the nervous system grow out of control. These cells are called neuroblasts. Over time, the out-of-control cells form a tumor. Neuroblastoma is the most common solid