The term neurosis, also known as psychoneurosis or neurotic disorder, is a general term that refers to any mental imbalance that causes distress, but does not interfere with rational thought or an individual's ability to function in daily life. Psychoneurosis is often a milder disturbance of the cognitive, emotional and motor process, caused by emotional stresses, conflicts and frustrations which partially incapable the individual to meet the situations and demands of life effectively.
Psychoneurosis and psychosis have little in common and should be distinguished as different entities with different origin and outcome. Psychoneurotic is often indistinguishable from normal individuals. A psychoneurotic is in touch with the reality and environment. There is no decline in intellect, personality, social habits, and no significant organic pathology. Speech and thought process are logical and rational. Although the incapacitating symptoms of the psychoneurotic may decrease work efficiency, limit social contacts, and create personal distress, they do not interfere with the general welfare of others or make his presence in society intolerable.