Nutrition basics
Learning Center
Vaginal odor
Learn about causes of unpleasant or unusual odor from the vagina and when to seek care.
Varicocele
Find out how this condition involving the enlargement of veins in the scrotum can affect sperm quality and production.
Vasectomy
Find out more about this procedure that provides nearly 100 percent effective male birth control by cutting the supply of sperm to semen.
Vasectomy reversal
Learn about this microsurgery procedure that can restore your fertility after a vasectomy.
Video: An asthma attack
What happens to your airways during an asthma attack?
Video: Migraine aura
A migraine aura is usually visual, but can also be a sensory, motor or verbal disturbance. This animation shows what happens when you have a migraine aura.
Vocal cord dysfunction: Is it a type of asthma?
Vocal cord dysfunction and asthma cause similar symptoms, but they're not the same. Find out the difference between the two.
Vulvar varicosities during pregnancy: What can you do?
Vulvar varicosities can cause discomfort during pregnancy. Understand what causes this form of varicose veins and learn how to get relief.
Water: How much should you drink every day?
Know how much water to drink to stay healthy and hydrated.
Wheezing
Wheezing: Symptom — Overview covers definition, possible causes of this symptom.
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