Genital herpes is one of the most common sexually transmitted diseases in the U.S. It is caused by the herpes simplex virus (HSV). Most cases of genital herpes are caused by infection by the herpes ...

Many people who have lupus have a mild case of the disease. But there are times when symptoms -- pain and inflammation-- get worse. That’s called a flare or flare-up. When flares happen, you may even ...

A small amount of fat in your liver is healthy, but when fat makes up more than 5% of your liver's weight, it can cause problems. At this point, doctors call it steatotic liver disease, although you ...

Spasmodic dysphonia (or laryngeal dystonia) is a rare voice disorder that is thought to happen when your brain sends abnormal signals to your vocal folds. It only affects about 1 in 100,000 people.