Consumer health basics
Learning Center
Priapism
Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.
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.
Retrograde ejaculation
Learn about the symptoms and treatment options for this condition that can cause male infertility.
Listeria infection
This foodborne bacterial illness can be very serious for some people. Learn about symptoms, treatment and tips for prevention.
Cytomegalovirus (CMV) infection
Understand the symptoms and treatment of this common viral infection that can cause health problems for babies and people who have weakened immunity.
Enlarged heart
Cardiomegaly is another word for this sign or symptom that may be caused by certain heart conditions or even pregnancy. Know how it's treated.
Erectile dysfunction: Nonoral treatments
Get the facts about shots, penis pumps and other ED treatments that don't involve taking medicine by mouth.
Atrioventricular canal defect
This congenital heart defect involves a hole in the heart. It affects blood flow through the heart valves. Learn the symptoms and how it's treated.
Tricuspid atresia
Learn how this congenital heart defect blocks blood flow from the heart to the lungs. Treatment involves multiple surgeries.
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