Correction: The original version of this article misstated the symptom checker's original launch date. WebMD, long the go-to for patients turning to the internet for an answer to mysterious symptoms, ...

We’ve all done it: You plug your aches and pains into WebMD’s Symptom Checker, see that it could be either “cancer” or “seasonal allergies,” and promptly close out the window and decide to ignore ...

For the best experience, please enable JavaScript in your browser settings. People looking to a popular online symptom checker for answers about eye problems often ...

Medical providers divide altered mental status into three types: delirium, dementia, and psychosis: Delirium. Delirium is a change in mental function that often results in confusion and lack of ...

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.