Nutrition basics
Learning Center
Heavy menstrual bleeding
Learn about the causes and treatment of heavy menstrual periods.
Ambiguous genitalia
Learn about causes and treatment of ambiguous genitalia, a rare disorder of sex development in which a baby's external genitals are not clearly male or female.
Amenorrhea
Absence of menstruation (amenorrhea) may be linked to an underlying, treatable problem. Learn about amenorrhea causes and when to seek help.
Spitting up in babies: What's normal, what's not
Spitting up in babies is common — and usually nothing to worry about.
Mental illness in children: Know the signs
It can be hard to tell the difference between typical behavior and symptoms of mental illness in children. Find out what to look for and when to act.
Guide to different tick species and the diseases they carry
Learn about different tick species and some of the diseases they may carry.
Breastfeeding positions
Breastfeeding can be awkward at first. Experiment with various positions until you feel comfortable.
Blood in semen
Finding blood in your semen can be alarming, but the cause is usually benign. Find out possible causes and when to see a doctor.
Bent penis
Learn what can cause a curved erection and when you may need to see a health care provider.
Vaginal odor
Learn about causes of unpleasant or unusual odor from the vagina and when to seek care.
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