People with Tourette syndrome often describe a rising, uncomfortable sensation just before a tic fires, a feeling they cannot ignore until the movement happens. People with obsessive-compulsive ...

“Pure O” is not a formal mental health diagnosis. It refers to a form of OCD in which people may have compulsions that involve mental rituals more so than specific actions. Although pure obsessional ...

Contamination OCD is a subtype, or “theme,” of obsessive-compulsive disorder (OCD). It includes persistent fear of contamination and an overwhelming need to clean oneself and objects. OCD involves ...

This post was written by Chelsea Dale, M.S. Taylor’s mother noticed that her 8-year-old child was constantly sniffing but did not have a cold or allergies and was excessively blinking, head nodding, ...