Nutrition basics
Learning Center
Transurethral resection of the prostate (TURP)
Learn about this procedure used to treat urinary problems caused by an enlarged prostate gland.
Underweight? See how to add pounds healthfully
If you're underweight and not happy about it, try these tips to help you achieve your goal weight.
Undescended testicle
Learn about causes, complications and treatment of this condition in which one or both testicles aren't in the usual place within the scrotum.
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: Endovenous thermal ablation
Video showing endovenous thermal ablation procedure to treat varicose veins.
Water: How much should you drink every day?
Know how much water to drink to stay healthy and hydrated.
Withdrawal method (coitus interruptus)
The withdrawal method — pulling the penis out of the vagina before ejaculation — isn't the most effective birth control. Learn about the pros and cons.
Wrinkles
These lines in the skin are a natural part of aging that's also affected by sun exposure and smoking. Learn about prevention tips and treatment options.
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