Women who marry before the age of 18 may face a higher risk of mental illness.

This is according to a new French study that looked at over 18,000 women.

More than half who'd married as children and teens suffered from mental disorders throughout their lives.

Antisocial personality disorder was the most common mental illness among those who married young.

Researchers say it's not clear whether childhood marriage is to blame for the higher rate of mental illness because there could be other factors.

The study found half of women who married before 18 were pregnant when they wed.