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Infant jaundice is common. It can make your baby’s skin, eyes, and mouth turn yellow. While it may look odd,… What is infant jaundice? Infant jaundice is common during the first few days of a baby’s life. It’s caused by high levels of bilirubin…

Blepharospasm is a rare condition that causes your eyelid to blink or twitch. You can’t control it. It’s caused by… What is blepharospasm? Blepharospasm is a rare condition that causes your eyelid to blink or twitch. You can’t control it. This is called involuntary…

Cat-scratch disease is an infection you can get after a cat scratches, bites, or licks you. It is caused by… What is cat-scratch disease? Cat-scratch disease is an infection you can get after a cat scratches, bites, or licks you. It is caused by…

Barrett’s esophagus is a condition that affects your esophagus. It happens when acid from your stomach goes back up into… What is Barrett’s esophagus? Barrett’s esophagus is a condition that affects your esophagus. That’s the tube that food travels down when you eat. It…

Asthma is a chronic (long-term) disease of the lungs. It inflames and narrows the airways, making it harder to… What is asthma? Asthma is a chronic (long-term) disease of the lungs. It inflames and narrows the airways, making it harder to breathe. These are tubes…

Sjögren’s syndrome is an autoimmune disease that causes dry mouth and dry eyes. It can also cause dryness in other… What is Sjögren’s syndrome? Sjögren’s (pronounced “show-grins”) syndrome is a disease that causes dry mouth and dry eyes. It can also cause dryness in…

Restless legs syndrome is a condition in which your legs feel very uncomfortable when you’re sitting or lying down. It… What is restless legs syndrome (RLS)? Restless legs syndrome (also called RLS) is a condition in which your legs feel very uncomfortable when you’re…

Acne is a common skin condition. It causes bumps on the skin known as pimples to appear on the face… What is acne? Acne is a common skin condition. It causes bumps on the skin known as pimples. Pimples form when the tiny hair…

Flatulence is another name for gas. It happens when air stays in your abdomen after you eat. It can be… What is flatulence/gas? Flatulence is another name for gas. You’ve experienced it. In fact, it’s normal for people pass gas several times a day…