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With bleeding disorders, there is a problem with blood clotting. It may be hard to stop the bleeding. Read about bleeding disorders and treatments. READ MORE

Bleeding is the loss of blood, inside or outside the body. A hemorrhage is severe bleeding. Learn about the causes of bleeding and how to treat it. READ MORE

Many conditions can affect your bladder and put you at risk for bladder diseases. Read about some of the common bladder pains which includes Cystitis READ MORE

Bladder cancer symptoms range from lower back pain to blood in your urine. Read about important risk factors and find a list of treatments available READ MORE

Birthmarks can be two main types: vascular, such as hemangiomas and port wine stains or pigmented, such as a mole or Mongolian spot. Find out more. READ MORE

Newborn babies vary in birth weight and size. Some low birth babies may have health issues. Get the facts on your baby's birth weight. READ MORE

A birth defect is a problem that happens while a baby is developing in the mother's body. Learn about the different types of birth defects, their treatments, and how some kinds can be prevented. READ MORE

Birth control, or contraception, is designed to prevent pregnancy. Read about the different options and their risks and benefits. READ MORE

The bird flu (also known as influenza A or the avian flu) primarily infects birds, but can pose health risks to people. Learn how to avoid this flu. READ MORE

Bipolar disorder is a mood disorder that can cause intense mood swings. It's also called manic depression. Learn about the types, symptoms, treatment, and more. READ MORE

If your doctor suspects you may have cancer or another disease, she may order a biopsy for you. Learn about the types of biopsies and more. READ MORE

Learn about and prepare for bioterrorism. Biodefense includes vaccines and other methods to protect against bioterrorism. READ MORE