Skin care
Learning Center
Tanning beds: Safer than the sun?
Tanning beds don't offer a safe alternative to natural sunlight.
Sunless tanning: What you need to know
Sunless tanning products can provide a safe, natural-looking tan — if they're applied carefully and correctly.
Best sunscreen: Understand sunscreen options
Confused about the best sunscreen? Here's some help sorting through the options.
Urine cytology
A urine cytology test uses a sample of your urine to look for abnormal cells, which could indicate a urinary tract cancer.
Reactive airway disease: Is it asthma?
Reactive airway disease is a general term that doesn't indicate a specific diagnosis.
Pap smear: Still needed after hysterectomy?
If you've had surgery to remove your uterus, you might not need routine Pap smears. Find out what doctors recommend for cervical cancer screening.
Hydrated skin: Does drinking water help?
Understand the role water plays in keeping skin healthy.
Mayo Clinic Minute: What you need to know about polyps in your colon
Got polyps? Find out why detecting, and removing, colon polyps is so important.
CT coronary angiogram
Learn about the risks and results of this imaging test that looks at the arteries that supply blood to your heart.
Bilirubin test
Find out what to expect from a bilirubin test — an important blood test that determines how your liver is functioning.
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