What Are the Symptoms of OCD?

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A typical example or a common example of OCD would be somebody who's worried about contamination.  Would be with germs, it could be a worry about contracting or spreading an illness.  Other cases might be just something that they find repulsive or disturbing.  It usually starts insidiously, it may start with just a little bit of a concern but the nature of OCD is that the concern spreads and initially they try to find a way through a compulsion say through hand washing or avoiding certain contaminants to reduce the symptoms but becomes an endless loop.

The more that they try to avoid, the more they do the compulsion generally, the more the symptoms begin to evolve.