Women's health
Learning Center
Hemolytic uremic syndrome (HUS)
Damage to the small blood vessels in the kidneys can cause clots that clog the organ's filtering system. This can lead to life-threatening kidney failure.
Hemophilia
In this inherited disorder, the blood lacks one of several clot-forming proteins. The result is prolonged bleeding, which can be life-threatening.
Hepatitis A
This contagious liver infection is caused by a virus. Learn more about its symptoms, treatment and prevention, including the hepatitis A vaccine.
Hepatitis B
This highly contagious virus can cause long-lasting problems if it goes untreated. Learn about the symptoms, treatment and prevention of this serious liver infection.
Hip dysplasia
In infancy, this condition often can be corrected with a soft brace. Older children and young adults might require surgery to correct the misalignment.
Hirschsprung's disease
This digestive disorder that's present at birth affects the nerves in the colon. It causes severe constipation but can be treated.
Horner syndrome
Find out about Horner syndrome, an interruption in nerve signals from the brain to the eye and face on one side of the body.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
Hydrocephalus
Learn about this potentially fatal condition that causes fluid buildup in the brain. It can cause a range of symptoms, from headaches to poor balance.
Hydronephrosis
Learn about this condition that occurs when urine doesn't drain properly from the upper urinary tract, leading to kidney swelling.
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