Excessive hand washing. Some people who suffer from obsessive-compulsive disorders (OCD) have an inordinate fear of germs. To relieve their anxiety, they wash their hands over and over again. They construct elaborate rituals to ensure that they leave no germ untouched. Again, this form of OCD can impact the daily lives of those who suffer from it. Again, therapy can help most people with this form of OCD move on to a productive lifestyle.