Delusion of infidelity is seen in:
Othello syndrome is also called delusional jealousy or morbid jealousy. This is a state of false fixed belief that the spouse is unfaithful. It is more common in men and alcoholics. It can also associated with schizophrenia and cocaine use. It can lead the individual to act on the delusion and thereby become violent or stalk.
Othello syndrome
Dechlerambault syndrome
Magnan syndrome
Cotard syndrome
Basics of Psychiatry