Delusional disorders are mental health conditions characterized by the presence of one or more persistent delusions. A delusion is a false belief that is strongly held despite evidence to the contrary. These beliefs can involve various themes, such as persecution, grandeur, or jealousy, and can significantly impact a person's daily life and relationships. Individuals with delusional disorders may not exhibit other significant symptoms of mental illness, making it challenging to diagnose. Treatment often involves psychotherapy and, in some cases, medication to help manage symptoms. Early intervention can improve outcomes for those affected by delusional disorders.