In ocd, person have washing habit , then as a sideeffects he will have fear of other urine does this fear also remain after the habit gone?

If not properly: treated, obsessive thoughts could remain even if a particular compulsive behavior was extinguished.

Phobia: It is always important to keep in mind that a psychological symptom may be caused by an underlying physical disorder. A physical disorder should be ruled out before undertaking a psychological course of treatment. Psychologically, the cause is unique to the individual and benefits from exploration in psychotherapy with a clinical psychologist.