The behavioral theory suggests that people with OCD associate certain objects or situations with fear, and that they learn to avoid the things they fear or to perform rituals that help reduce the fear. This pattern of fear and avoidance/ritual may begin when people are under periods of high emotional stress, such as starting a new job or ending a relationship.
At such times, we are more vulnerable to fear and anxiety. Often things once regarded as "neutral" may begin to bring on feelings of fear. For example, a person who has always been able to use public toilets may, when under stress, make a connection between the toilet seat and a fear of catching an illness.
Once a connection between an object and the feeling of fear