Skin care
Learning Center
Video: Sentinel node biopsy for melanoma
Video shows sentinel node biopsy to determine whether melanoma has spread.
Video: Skin cancer — How skin cancer develops
Watch this video to see what melanoma and nonmelanoma skin cancers look like and how they develop.
Video: Endoscopy
An endoscopy allows your doctor to view your esophagus, stomach and part of the small intestine. Here's how it works.
Stress fractures
Stress fractures are tiny cracks in bones often caused by overuse or osteoporosis. Learn how to prevent and treat them.
Video: Barium enema
See what to expect during an X-ray examination of your colon.
Mayo Clinic Minute: Shining the light on SPF in sunscreen
Find out what SPF means and what SPF to look for in your sunscreen.
Mayo Clinic Minute: Uncovering UPF in clothing
Find out how UPF clothing can help protect you from the sun.
Mayo Clinic Minute: The many benefits of petroleum jelly
Try these simple tips for healing dry skin with petroleum jelly.
MRI: Is gadolinium safe for people with kidney problems?
Older gadolinium contrast agents used with MRI posed a risk for people with severe kidney failure. Newer versions are much safer.
Cholesterol test kits: Are they accurate?
Home cholesterol test kits are often as accurate as the test a health care professional uses, but the quality of results can depend on how well you follow the directions for the test.
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