Sex can be vitally important for men and women in any relationship. But for someone who suffers from obsessive-compulsive disorder (OCD), it can become the focus of an obsession.

OCD is a chronic mental health condition marked by repetitive and intrusive thoughts or sensations, or the impulse to do something over and over again. This disease affects an estimated 1 to 3 percent of the population.

Studies indicate up to half of all OCD patients report experiencing sexual dysfunction. Here are some common signs that your sex life may be affected by obsessive-compulsive disorder:

Fear of contamination

Many people with OCD have an irrational fear of contamination, and that might put you off having sex at all. Perhaps you're concerned your partner may have a disease or you may just want to avoid contact with their bodily fluids.

Decreased sex drive and inability to reach orgasm