Mental health
Learning Center
Video: Colonoscopy
See what a doctor sees when you undergo an examination of your colon.
Video: Barium enema
See what to expect during an X-ray examination of your colon.
Video: Allergy tests
What happens in an allergy test? Watch this video and find out.
Ventricular septal defect (VSD)
In this heart problem present at birth, there is a hole between the two lower heart chambers. Know the symptoms and when surgery is needed.
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.
Varicocele
Find out how this condition involving the enlargement of veins in the scrotum can affect sperm quality and production.
Urine cytology
A urine cytology test uses a sample of your urine to look for abnormal cells, which could indicate a urinary tract cancer.
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.
Tumor vs. cyst: What's the difference?
A Mayo Clinic expert explains the differences and similarities between these two types of growths and how doctors determine if they're cancerous.
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