Find answers to your health-related questions in our health encyclopedia.

  • Disease

    Waardenburg syndrome

    Broad nasal bridge, or widening of the base of the nose, is a relative term. It can be a normal facial feature, but it can also be associated with certain congenital disorders such as basal cell nevus syndrome, or trisomy 8, a chromosome defect.

    Waardenburg syndrome is a group of conditions passed down through families. The syndrome involves deafness and pale skin, hair, and eye color.

  • Disease

    Waldenstrom macroglobulinemia

    Lymphocytoid appearing plasma cell nucleus similar to a lymphocyte and cytoplasm similar to a plasma cell.

    Waldenstrom macroglobulinemia (WM) is a cancer of the B lymphocytes (a type of white blood cell). WM is associated with the overproduction of proteins called...

  • Symptoms

    Walking abnormalities

    Walking abnormalities are unusual and uncontrollable walking patterns. They are usually due to diseases or injuries to the legs, feet, brain, spinal cord, or...

  • Self-Care Instructions

    Warning signs and symptoms of heart disease

  • Poison

    Wart remover poisoning

    A common wart.  A circular bandage.

    Wart removers are medicines used to get rid of warts. Warts are small growths on the skin that are caused by a virus. They are usually painless. Wart remover...

  • Disease


    A common wart.  A circular bandage.

    Warts are small, usually painless growths on the skin. Most of the time they are harmless. They are caused by a virus called human papillomavirus (HPV). Some...

  • Poison

    Wasp sting

    Wasps are not known to carry human diseases, but allergic reactions to their sting can be fatal.  (Image courtesy of the Centers for Disease Control and Prevention.)

    This article describes the effects of a wasp sting. This article is for information only. DO NOT use it to treat or manage a sting. If you or someone you are...

  • Nutrition

    Water in diet

    Water is a combination of hydrogen and oxygen. It is the basis for the fluids of the body.

  • Self-Care Instructions

    Water safety and drowning

    Drowning is a leading cause of death among people of all ages. Learning and practicing water safety is important to prevent drowning accidents.

  • Poison

    Watercolor paints - swallowing

    This article discusses the health problems that might occur when someone swallows watercolor paints. This can happen by accident or on purpose. This article...