Diseases and Conditions
Obsessive-compulsive disorder (OCD)
Overview
Symptoms
Causes
Risk factors
Complications
Prevention
Diagnosis
Treatment
Lifestyle and home remedies
Coping and support
Preparing for an appointment
Causes
The cause of obsessive-compulsive disorder isn't fully understood. Main theories include:
- Biology. OCD may be a result of changes in your body's own natural chemistry or brain functions.
- Genetics. OCD may have a genetic component, but specific genes have yet to be identified.
- Learning. Obsessive fears and compulsive behaviors can be learned from watching family members or gradually learned over time.
