The presence of obsessions or compulsions, or both, are what distinguishes obsessive-compulsive disorder from other conditions. The obsessions or compulsions cause marked distress, are time-consuming, and interfere with a person's normal functioning.
(1989) concluded that everyone excretes stinky compounds in their urine after eating asparagus, and the only variation is in ability to smell them. Other papers using chemical tests and carefully controlled smelling tests show that there is variation in excretion of sulfur compounds in urine after eating asparagus.
It has long been known that some people find that their urine has a strong, unusual smell after they eat asparagus, which is believed to result from sulfur-containing compounds (Nencki 1891). Other people don't notice anything unusual after eating asparagus.