OCD Symptoms: Recognising the Signs of Obsessive-Compulsive Disorder

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Obsessive-Compulsive Disorder (OCD) is a common mental health condition that affects millions of people worldwide. Although the term "OCD" is often used casually to describe someone who likes things neat or organised, the reality is far more complex. OCD is characterised by persistent, unwanted thoughts, images, or urges (obsessions) and repetitive behaviours or mental acts (compulsions) that can significantly disrupt everyday life.

Many striking examples of how OCD ‘affects personal relationships, professional goals, and life paths’ are described in the book Brain Lock. One such case involved a woman named Jill who battled ‘contamination obsession for twenty-five years.’ She would spend hours each day cleaning and re-cleaning her house. This ritual placed a considerable burden on Jill’s daily life, forcing her to wake up hours earlier than necessary simply to avoid being late for work. Even after leaving the house, the obsession persisted. Throughout the day, Jill remained consumed by the fear that her house was not sufficiently clean.

While not every case of OCD is this severe, the condition can gradually become more intrusive if left untreated. Recognising the signs early is an important first step towards seeking professional support and treatment before symptoms begin to dominate daily life.

Whether you're concerned about yourself or someone close to you, understanding the symptoms of OCD can help you recognise when professional support and treatment methods may be beneficial. In this article, we'll explore some of the most common signs and symptoms of OCD, helping you identify them in yourself or others.

What is obsessive compulsive disorder?

The answer to this question is described in more detail in my other blog, Types of OCD. There the anatomy of the condition is reviewed along with a range of neurological and psychological causal factors.

As the focus of this present piece is on OCD symptoms, a simplified outline of what obsessive compulsive disorder is will suffice.

In DSM 5, the most authoritative guide to mental health conditions, obsessive-compulsive disorder is defined as a ‘long-term mental health condition’ characterised by ‘recurring obsessions and compulsions.’ These symptoms (as described in the introduction) can consume hours each day, causing distress and affecting work, education, relationships and overall quality of life.

The authors of Brain Lock provide us with a more concise answer to the opening question. According to them, ‘When your obsessions and compulsions are bad enough to cause significant functional impairment, you have OCD.’

Common OCD symptoms

OCD symptoms generally fall into two main categories: obsessions and compulsions. Many people experience both, although some may primarily struggle with one.

Obsessions

Obsessions are intrusive, repetitive thoughts, images, or urges that create significant anxiety or discomfort. They are unwanted and difficult to control.

Common obsession symptoms include

• Fear of contamination from germs, dirt, or illness.

• Fear of harming yourself or others accidentally.

• Excessive concern about safety, such as worrying you've left the oven on or the door unlocked.

• Intrusive violent or disturbing thoughts.

• Unwanted sexual thoughts.

• Religious or moral fears, sometimes known as scrupulosity.

• An intense need for symmetry, order, or exactness.

• Fear of making mistakes or forgetting important information.

These obsessive thoughts often occur repeatedly, even when the individual knows they are unlikely or irrational.

“Helpful Fact: Most of your distress is caused not by what you think or feel, but how you feel about and react to what you think or feel” (Overcoming Unwanted Intrusive Thoughts).

Common compulsions

Compulsions are repetitive behaviours (checking doors are locked) or mental rituals (counting or reciting) performed to reduce the anxiety caused by obsessions.

While they may provide temporary relief, they reinforce the OCD cycle over time.

Common compulsive symptoms include

• Excessive cleaning: Frequent handwashing, showering, or cleaning household surfaces to reduce fears of contamination.

• Repeated checking: Constantly checking locks, appliances, electrical switches, or important documents to prevent perceived disasters.

• Counting: Counting objects, steps, or repeating actions a certain number of times until they feel "right."

• Arranging and ordering: Organising belongings in a highly specific way and becoming distressed if items are moved.

• Reassurance seeking: Repeatedly asking others for confirmation that everything is okay or that no mistake has been made.

• Mental rituals: Silently repeating words, prayers, or phrases to neutralise unwanted thoughts.

Emotional OCD symptoms

A common misconception is that OCD is just about behaviours such as ordering or checking. However, as most people with OCD will attest, many emotional symptoms accompany the condition.

For example, emotional OCD symptoms include

• Persistent anxiety

• Feelings of guilt

• Shame about intrusive thoughts

• Frustration

• Fear

• Emotional exhaustion

• Difficulty concentrating

These emotional challenges can become overwhelming and contribute to stress, depression, or social withdrawal.

“The struggle is not to make the feeling go away; the struggle is not to give in to the feeling” (Brain Lock).

Physical symptoms associated with OCD

Although OCD is classed as a mental health condition, it can also adversely impact a person’s physical wellbeing. The constant anguish caused by, for example, worrying if the house is securely locked, over time leads to burnout and emotional exhaustion.

It is well understood that both states impair a person’s ability to function optimally. Simple tasks become challenging and mistakes are more likely to occur.

Some of the more common physical effects include

• Fatigue from repetitive rituals

• Dry or damaged skin from excessive washing

• Muscle tension

• Headaches

• Sleep disturbances

• Difficulty relaxing

By disrupting healthy habits, long periods spent performing compulsions can also interfere with eating, exercise, sleep quality and overall physical wellbeing.

OCD Symptoms in Children

Children can also develop OCD, although symptoms may appear differently than in adults.

Signs of OCD in children include

• Excessive washing or cleaning

• Repeated checking behaviours

• Fear of germs or illness

• Asking repetitive questions for reassurance

• Difficulty completing homework because tasks must feel perfect

• Becoming distressed when routines are interrupted

• Secretive rituals performed before bed or school

Parents may initially mistake these behaviours for personality traits or phases, making early recognition important.

When OCD symptoms affect daily life

Many people have occasional intrusive thoughts or routines. OCD becomes a clinical concern when symptoms:

• Take more than one hour each day.

• Cause significant distress.

• Interfere with work, school, or relationships.

• Prevent normal daily functioning.

• Lead to avoidance of people, places, or situations.

If OCD symptoms are affecting your quality of life, seeking professional assessment is recommended.

What causes OCD?

There is no single cause of OCD. Researchers believe several factors may contribute, including:

• Genetics: People with a close family member who has OCD may have a higher likelihood of developing the condition.

• Brain function: Differences in how certain brain regions communicate may contribute to OCD symptoms.

• Life experiences: Stressful life events, historic trauma, adverse childhood experiences (ACEs) or significant changes may trigger symptoms in some individuals.

• Personality factors: People who naturally have high levels of responsibility, perfectionism, or anxiety may be more vulnerable.

How OCD is diagnosed

When it comes to diagnosing OCD, a qualified mental health professional will assess:

• The nature of obsessive thoughts.

• The presence of compulsive behaviours.

• How long symptoms have existed.

• The impact on everyday life.

• Whether symptoms could be explained by another condition.

Diagnosis usually involves a detailed interview rather than medical tests.

Treatment for OCD symptoms

The good news is that OCD is highly treatable. Common treatment options include:

Cognitive Behavioural Therapy (CBT)

CBT is one of the most effective treatments for OCD. A specialised form called Exposure and Response Prevention (ERP) helps individuals gradually face their fears while resisting compulsive behaviours.

Medication

Some people benefit from antidepressant medications known as Selective Serotonin Reuptake Inhibitors (SSRIs), particularly when symptoms are moderate to severe.

Lifestyle support

Healthy habits may also help improve overall wellbeing. The following list has been shown to be effective.

• Regular physical activity

• Good sleep routines

• Stress management techniques

• Strong social support

• Mindfulness meditation practices

Treatment plans are personalised based on each person's needs.

When to seek professional help

If obsessive thoughts or compulsive behaviours are becoming difficult to manage, it's important to seek support. Early intervention often leads to better outcomes and can reduce the impact OCD has on daily life.

A healthcare professional or mental health specialist can provide an accurate diagnosis and recommend suitable treatment options.

OCD Symptoms frequently asked questions

Can OCD symptoms come and go?

Yes. Symptoms often fluctuate over time and may worsen during periods of stress or major life changes.

Is OCD just about cleaning?

No, far from it. Although contamination fears are common, OCD can involve many different types of obsessions and compulsions, including checking, counting, intrusive thoughts and reassurance seeking.

Can OCD be cured?

While there is currently no definitive cure, many people successfully manage OCD symptoms with therapy, medication, or a combination of both.

Is OCD common?

Yes. OCD affects people of all ages, genders and backgrounds. It is one of the more common mental health conditions worldwide.

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Final thoughts

OCD symptoms extend far beyond perfectionism or a preference for cleanliness. They involve persistent intrusive thoughts and repetitive behaviours that can cause significant distress and interfere with everyday life. Understanding the signs of obsessive-compulsive disorder is an important first step toward getting effective support.

With evidence-based treatments such as Cognitive Behavioural Therapy and appropriate medical care when needed, many people with OCD experience substantial improvements in their symptoms and quality of life. If you or someone you know is struggling with OCD symptoms, seeking professional advice can be an important step toward recovery.

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About Dr Laura Allen –

A Chartered Psychologist & Integrative Therapist, Dr Allen specialises in a broad range of therapeutic methods. She is a published author of numerous research papers and Interactive Courses in the field of Psychology. Dr Allen works one-to-one with clients and supervises other practitioners. She is also a proud member of the British Psychological Society assessment team supporting psychologists in training.