Parental health
Learning Center
Atrial septal defect (ASD)
This heart problem that is present at birth causes a hole between the heart's upper chambers. It can be treated.
Atrial tachycardia
This type of fast heartbeat may occur after heart surgery or during pregnancy. But infections may trigger it, too. Learn how it's diagnosed and treated.
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.
Atypical hyperplasia of the breast
Learn how a diagnosis of atypical lobular hyperplasia or atypical ductal hyperplasia affects your risk of breast cancer and what you can do.
BRCA gene test for breast and ovarian cancer risk
Find out what to expect if you're considering a blood test to determine if you have an increased risk of breast cancer. Learn what your results might mean.
Baby teeth: When do children start losing them?
Losing baby teeth is a big childhood event. Find out what to expect.
Back pain during pregnancy: 7 tips for relief
Ease a painful or achy back while pregnant with these simple tips.
Bacterial vaginosis
Learn about symptoms, treatments and prevention of this common vaginal condition.
Bartholin's cyst
A Bartholin's cyst is a fluid-filled lump near the vaginal opening. It's rarely serious, but when infected, it can be painful.
Basal body temperature for natural family planning
Learn the steps for tracking body temperature for pregnancy or contraception. Find out when during your menstrual cycle you're more likely to be fertile.
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