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Cluster headache
These painful headaches cause severe pain on one side of the head and tend to occur in bouts called cluster periods.
Hemangioma
This red mark on a baby's skin looks like a rubbery bump or flat red mark and is made up of extra blood vessels in the skin. It generally goes away by age 10. Learn more about its causes and treatment.
Male hypogonadism
This condition affects the ability of men's bodies to produce enough testosterone or enough sperm or both.
Bladder cancer
Blood in the urine (hematuria) sometimes is a sign of bladder cancer. Learn about other bladder cancer signs and symptoms and explore treatment options.
Molluscum contagiosum
Learn how to prevent and treat this common skin infection that affects people of all ages.
Sex headaches
Learn about the causes and treatment of this type of headache.
Uterine polyps
Tissue growths inside the uterus can cause abnormal uterine bleeding or infertility. Learn about tests and treatment.
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