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1/3 of adult have experienced synonyms in early childhood. It affects 2.2 million adults 1% of the US population.

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There is Psychotherapy it is pretty helpful with people who have OCD.  ERP takes effort and practice, but you may enjoy a better quality of life once you learn to manage your obsessions and compulsions. A negative side effect is that it is hard to do and OCD is hard to get over since it is all in your mind.
There are also Medications.

Clomipramine (Anafranil) for adults and children 10 years and older

Fluoxetine (Prozac) for adults and children 7 years and older

Fluvoxamine for adults and children 8 years and older

Paroxetine (Paxil, Pexeva) for adults only

Sertraline (Zoloft) for adults and children 6 years and older.

With medications it is helpful but there are side effects. Such as become depressed, suicide risk, usage of other substances, overdose and more.

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Psychological evaluation. This includes discussing your thoughts, feelings, symptoms and behavior patterns to determine if you have obsessions or compulsive behaviors that interfere with your quality of life. With your permission, this may include talking to your family or friends.

Diagnostic criteria for OCD. Your doctor may use criteria in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), published by the American Psychiatric Association.

Physical exam. This may be done to help rule out other problems that could be causing your symptoms and to check for any related complications.

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Symptoms:

Fear of contamination or dirt

Doubting and having difficulty tolerating uncertainty

Needing things orderly and symmetrical

Aggressive or horrific thoughts about losing control and harming yourself or others

Unwanted thoughts, including aggression, or sexual or religious subjects

Washing and cleaning

Checking

Counting

Orderliness

Following a strict routine

Demanding reassurance

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Biology. OCD may be a result of changes in your body's own natural chemistry or brain functions.

Genetics. OCD may have a genetic component, but specific genes have yet to be identified.

Learning. Obsessive fears and compulsive behaviors can be learned from watching family members or gradually learned over time.

Family history. Having parents or other family members with the disorder can increase your risk of developing OCD.

Stressful life events. If you've experienced traumatic or stressful events, your risk may increase. This reaction may, for some reason, trigger the intrusive thoughts, rituals and emotional distress characteristic of OCD.

Other mental health disorders. OCD may be related to other mental health disorders, such as anxiety disorders, depression, substance abuse or tic disorders.

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https://www.mayoclinic.org/diseases-conditions/obsessive-compulsive-disorder/symptoms-causes/syc-20354432

https://adaa.org/understanding-anxiety/facts-statistics#:~:text=OCD%20affects%202.2%20million%20adults,first%20experienced%20symptoms%20in%20childhood.