Healthy diets
Learning Center
Viral gastroenteritis (stomach flu)
This condition, often called stomach flu, is usually harmless, except for infants and people with immunosuppression. Symptoms can usually be managed.
Video: Baby's soft spots (fontanels)
A baby's soft spots (fontanels) close when the skull bones fuse together. See how.
Vesicoureteral reflux
Learn about what happens if urine flows backward from the bladder. Usually found in children, this condition boosts the risk of urinary tract infections.
Ventricular fibrillation
Without fast treatment, this heart rhythm problem can cause death within minutes. Learn the symptoms of VFib and what actions to take to save a life.
Vegetarian diet: How to get the best nutrition
A vegetarian diet can meet your nutritional needs if you make wise choices.
Vasectomy reversal
Learn about this microsurgery procedure that can restore your fertility after a vasectomy.
Vasectomy
Find out more about this procedure that provides nearly 100 percent effective male birth control by cutting the supply of sperm to semen.
Vascular rings
Learn more about this condition in which malformations of the aortic arch encircle the windpipe and esophagus and can press against them.
Varicocele
Find out how this condition involving the enlargement of veins in the scrotum can affect sperm quality and production.
Valerian: A safe and effective herbal sleep aid?
Valerian — Can this sleep aid help you sleep better?
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