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Kidney cysts are sacs filled with fluid that form in the kidneys. These small, oval or round sacs are almost… What are kidney cysts? The kidneys remove waste from your blood. They do this by filtering the blood and making urine. As people get…

Otitis media with effusion means there is fluid in the middle ear. It is common in young children and usually… doctor to suction out the fluid behind the ear. They also allow air to get into the middle ear, which helps prevent fluid build-up. Any…

Vaginal discharge is the small amount of fluid produced by glands inside your vagina and cervix and released through the… What is vaginal discharge? Glands inside your vagina and cervix make small amounts of fluid. This fluid flows out of the vagina each day,…

Glaucoma is an eye disease. It’s caused by fluid and pressure in the eye. At first, there aren’t symptoms, but… if you experience these symptoms. What causes glaucoma? Normally, fluid in your eye nourishes the eye and keeps it healthy. After the fluid circulates through…

Bursitis of the hip is the swelling of the bursae, fluid-filled sacs that cushion tendons, ligaments, and muscles. It can… What is bursitis of the hip? Bursitis is the painful swelling of bursae. Bursae are fluid-filled sacs that cushion your tendons, ligaments, and muscles…

Eustachian tube dysfunction is when your ear is plugged with fluid. Sounds may be muffled, and your ear may feel… causes Eustachian tube dysfunction? The most common cause of Eustachian tube dysfunction is when the tube become swollen (inflamed) and mucus or fluid builds up…

West Nile virus is an infectious disease that can cause flu-like symptoms. It’s usually spread by infected mosquitos… What is West Nile virus? West Nile virus is an infectious disease that can cause flu-like symptoms. It’s usually spread by infected mosquitos. It first appeared in the…

H1N1 influenza is a viral infection. It’s not the same as seasonal flu (influenza). The first outbreak occurred in 2009… What is H1N1 influenza? H1N1 influenza is a viral infection. It’s not the same as seasonal flu (influenza). The first outbreak occurred in 2009 and infected…

Meconium aspiration syndrome affects newborns who inhale their stool and/or amniotic fluid before, during, or after labor and delivery… What is meconium aspiration syndrome? Meconium aspiration syndrome (MAS) happens when a newborn inhales meconium (the baby’s first stool) and/or amniotic fluid (the fluid that…

Gastroenteritis is a medical term for a stomach virus. Many people call it the stomach flu. It can strike anyone… What is a stomach virus? Gastroenteritis is a medical term for a stomach virus. Many people call it the stomach flu. It is not…

Heart palpitations is a condition that feels like your heart is pounding, racing, or skipping beats (fluttering)… What are heart palpitations? Heart palpitations are the sensation that your heart is pounding, racing, or skipping beats (fluttering). It is normal to hear or feel your…

Interstitial nephritis is a kidney disorder that affects your kidneys’ ability to filter waste and extra fluid… What is interstitial nephritis? Interstitial nephritis is a kidney disorder. The kidneys filter waste and extra fluid from the body. When you have interstitial nephritis, the spaces between tubules (small tubes)…

Polycystic kidney disease (PKD) is an inherited disease that affects the kidneys. It causes abnormal sacs of fluid (called cysts)… What is polycystic kidney disease? Polycystic kidney disease (PKD) is an inherited disease that affects the kidneys. Inherited means it runs in families and is…

Vibrio vulnificus is a type of bacteria found in warm seawater and contaminated shellfish. It can cause flu-like symptoms and… What is vibrio vulnificus infection? Vibrio vulnificus s a type of germ (bacteria) found in warm seawater. It comes from contaminated shellfish (especially oysters) or…