Common Causes And Complications Of OCD

Genetics And Family History

Research shows genetics and family history play a large role in the development of obsessive-compulsive disorder. Some of this may be because the brain abnormalities involved in OCD can be passed down through families. Being raised in a household with family members with untreated obsessive-compulsive disorder can also increase an individual's risk of developing obsessions and compulsions. The National Institutes of Health funded a study to examine DNA and its correlation to this condition. The study drew a correlation between OCD, similar anxiety disorders, and a mutation of the serotonin transport gene found in humans. Some patients with severe cases of obsessive-compulsive disorder also have a second mutation within the same gene. Around one-fourth of OCD patients have an immediate member of the family who has the disorder. Studies done on twins indicated if one identical twin has OCD, the other is more likely to develop the condition than if the twins are fraternal. The findings in the twin studies suggest genetics are responsible for between forty-five and sixty-five percent of an individual's risk of developing OCD.

Get more details on what increases the risk of obsessive-compulsive disorder now.