Search Results

Whooping Cough (Pertussis) in Adults What is whooping cough (pertussis)? Whooping cough (pertussis) is a very contagious respiratory illness. It mainly affects babies and young children, but adults can also get it. Whooping cough caused thousands of deaths in the 1930s and 1940s

Peyronie Disease What is Peyronie disease? Peyronie disease causes hard, flat plaque to form under the skin on the tissue of the penis. The plaque often starts as an inflammation that may turn into scar tissue. The plaque builds up inside the penis in the thick elastic membrane

Attention-Deficit / Hyperactivity Disorder (ADHD) in Children, Adolescents and Teens What is ADHD? ADHD, also called attention-deficit disorder, is a behavior disorder, usually first diagnosed in childhood, that is characterized by inattention, impulsivity, and, in some cases

Septic Arthritis (Infectious Arthritis) in Children What is septic arthritis in children? Septic arthritis is an infection in the joint fluid (synovial fluid) and joint tissues. It occurs more often in children than in adults. The infection usually reaches the joints through the

Ureterocele and Ureteral Duplication in Children What is a ureterocele and ureteral duplication in children? A ureterocele is a problem with a ureter. The ureter is a tube that connects the kidney to the bladder. There is 1 ureter for each kidney. The ureters send urine from the

Persistent Pulmonary Hypertension in the Newborn What is persistent pulmonary hypertension (PPHN) in the newborn? Persistent pulmonary hypertension (PPHN) happens in newborn babies. It occurs when a newborn’s circulation continues to flow as it did while in the uterus. When this

X-Linked Agammaglobulinemia in Children What is X-linked agammaglobulinemia in children? X-linked agammaglobulinemia is a rare genetic disease. It causes a weakened immune system. It is also known as Bruton's agammaglobulinemia. X-linked means that the gene that causes this

Rheumatic Fever What is rheumatic fever? Rheumatic fever is a complex disease that affects the joints, skin, heart, blood vessels, and brain. It occurs mainly in children between the ages of 5 to 15. It's an autoimmune disease that occurs after an infection with strep

Phenylketonuria (PKU) in Children What is phenylketonuria (PKU) in children? Phenylketonuria (PKU) is a rare metabolic disorder. Children with PKU can’t process an amino acid called phenylalanine. Phenylalanine is in many common foods. It helps the body make protein. It's also

Sunburn What is sunburn? Sunburn is a red, painful skin reaction that occurs after too much exposure to ultraviolet (UV) light. UV light is a type of radiation in sunlight. The symptoms of a sunburn most often appear a few hours after sun exposure. They are often worst at 6 to 36