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Water Intoxication
Water intoxication, also called water poisoning or water toxicity, occurs when a person drinks or retains more water than the body can…
Watery Eyes
Watery eyes, also called epiphora, happen when the eyes produce more tears than usual or when tears cannot drain normally. A thin…
Wbc Blood Test
A WBC blood test measures the number of white blood cells in a blood sample. It may be ordered on its own…
Weight Gain
Weight gain means an increase in body mass. It may come from fat, muscle, pregnancy, or other body tissues, but it can…
Wheezing
Wheezing is a high-pitched, whistling, or musical wheezing sound that happens when air moves through narrowed or inflamed airways. It may be…
Whooping Cough
Whooping cough is a contagious bacterial respiratory illness caused by Bordetella pertussis, which infects the airways. It can affect people of any…
Wilms Tumor
Wilms tumor, also called nephroblastoma, is a rare cancer that usually begins in one kidney in young children. It is one of…
Wolff-Parkinson-White Syndrome
Wolff-Parkinson-White syndrome, also called WPW syndrome, is a heart rhythm condition caused by an extra electrical connection in the heart. This accessory…
Worster-Drought Syndrome
Worster-Drought syndrome is a congenital or early-developmental neurological disorder that affects control of the muscles used for speech, swallowing, and other movements…
