Intimacy disorder affects how people connect emotionally and physically with others in close relationships. While it’s not an official diagnosis in the DSM-5, mental health professionals see it as a ...

Primary immunodeficiency disorders (PIDs) are a heterogeneous group of disorders characterized, as the name suggests, by deficiencies (abnormal, poor or absent function) in the immune system. As ...

Childhood disintegrative disorder (CDD) occurs when a child regresses in multiple areas of functioning after about 2 years of typical development. It is part of autism spectrum disorder (ASD).

Tic disorders are conditions featuring sudden, non-rhythmic movements or vocalizations. A formal tic disorder diagnosis is determined by tic frequency, duration, and type. Tics are non-rhythmic ...