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Blocked tear duct
Watery, irritated eyes may occur when your tears can't drain normally. Learn about this common eye condition that affects newborns and sometimes, adults.
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Blood glucose meter: How to choose
Read tips on finding a blood glucose meter that fits your needs and lifestyle.
Blood in semen
Finding blood in your semen can be alarming, but the cause is usually benign. Find out possible causes and when to see a doctor.
Blood pressure medications: Can they raise my triglycerides?
Learn which blood pressure medicines might raise triglyceride levels.
Blood sugar levels can fluctuate for many reasons
Unexplained changes in blood sugar levels can be the result of illness, injury, stress and hormone changes.
Blood thinners: Can I still get blood clots?
These medications must be taken exactly as directed to prevent blood clots.
Blood transfusion
A blood transfusion can help replace blood lost due to surgery or injury. It also can help if an illness prevents your body from making blood correctly.
Bone cancer
Bone cancer most commonly affects the long bones in the arms and legs. Some types happen mostly in children, while others affect mostly adults.
Bone density test
If your doctor suspects you have osteoporosis, a bone density test can assess your bone strength. Learn about the risks and results of this procedure.
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