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Tests & Procedures

Birth control patch

Learn how to use this type of birth control that delivers estrogen and progestin through…

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Birth control pill FAQ: Benefits, risks and choices

The birth control pill is surrounded by misinformation. Get the facts on common concerns and…

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Birth control pills: Harmful in early pregnancy?

If you took birth control pills before you knew you were pregnant, the risks of…

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Birthmarks

Learn to identify types of birthmarks by how the skin looks. Examples include café au…

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Black eye: First aid

How to recognize and provide first aid for a black eye.

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Black hairy tongue

This condition gives the tongue a dark, furry look. It results from a buildup of…

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Bladder cancer

Blood in the urine (hematuria) sometimes is a sign of bladder cancer. Learn about other…

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Bladder control: Lifestyle strategies ease problems

Bladder training and avoiding bladder irritants might help with bladder control.

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Bladder control problems: Medicines for urinary symptoms

If you've tried lifestyle changes and you still have bladder control problems, medicine might help…

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Bladder control problems: How to seek treatment

Bladder control problems can be managed or overcome. The first step is to seek treatment.

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Bladder exstrophy

This rare condition present at birth happens when the bladder develops outside of an unborn…

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Bladder infection in men

Although women are more likely to get bladder infections, men can get them too. Learn…

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Bladder outlet obstruction: Causes in men?

Find out more about the causes of male bladder outlet obstruction and possible next steps.

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Bladder removal surgery (cystectomy)

Learn about new ways to surgically remove the bladder and rebuild another urinary system.

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Bladder stones

Minerals in urine can form crystals when the bladder does not empty all the way.

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Blastocystis hominis

This microscopic organism is a parasite that can live in your digestive system. Whether it…

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Bleeding after hysterectomy: What can I expect?

Light vaginal bleeding after hysterectomy is common; it may occur for several days or several…

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Bleeding after menopause: A concern?

It's unusual to bleed from the vagina after menopause. Learn what health problems can cause…

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Bleeding during pregnancy

Learn what may cause this type of bleeding during pregnancy and when to see a…

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Blepharitis

This long-lasting eyelid condition can be difficult to treat. It might be uncomfortable, but it…

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Blepharoplasty

Learn what's involved and the risks, as well as what kind of results you can…

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Blighted ovum: What causes it?

A Mayo Clinic specialist explains what's behind this type of early pregnancy loss.

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Blisters: First aid

Learn how to give first aid for blisters.

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Blocked tear duct

Watery, irritated eyes may happen when your tears can't drain. Learn about this common eye…

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Blood and bone marrow stem cell donation

Learn what these donations involve and what the risks are.

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Blood clots

Blood clots: Symptom — Overview covers definition, possible causes of this symptom.

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Blood clots during menstruation: A concern?

Blood clots during menstrual periods aren't always a cause for a concern. But passing large…

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Blood donation

Find out what to expect during blood donation and how your blood will be used…

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Blood glucose meter: How to choose

Read tips on finding a device that fits your needs and lifestyle.

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Blood glucose monitors: What factors affect accuracy?

Consider these factors when measuring blood sugar levels with blood glucose monitors.

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