Online symptom checkers often misdiagnose patients’ problems, often encouraging people to seek care for minor issues that don’t need immediate attention and other times incorrectly telling people with true emergencies that treatment can wait, a UK study suggests.
Researchers tested 23 online and mobile apps used by millions of people who are trying to find out if their symptoms are serious and what might make them feel better. The apps were imperfect at best, offering the correct diagnosis on the first try only about a third of the time.
