About OCD

Symptoms of OCD

OCD may appear as intrusive thoughts, repeated doubt, avoidance and actions intended to obtain relief or certainty. Much of it takes place mentally and can therefore be difficult for other people to see.

Explore types of OCD Learn what OCD is
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Symptoms of OCD in brief

OCD may involve visible rituals such as repeated handwashing or checking, but many symptoms are less obvious: repeated analysis, checking feelings, seeking reassurance, searching online or avoiding triggers.

The shared feature is a recurring attempt to obtain , certainty or control. The strategy may feel necessary in the moment but often keeps the cycle of doubt going.

The central issue is the pattern of doubt, distress, compulsions and avoidance, not whether the symptoms are visible. Analysis, checking feelings and reassurance seeking can consume considerable time and attention even when other people cannot see them.

How OCD can present

OCD may be characterised by obsessions, compulsions or both. For some people, doubt and mental strategies are most prominent; for others, the external rituals are more visible.

Intrusive thoughts and doubt

Thoughts, images, urges or questions keep returning and feel as though they must be resolved.

Visible and mental compulsions

Actions, analysis and internal rules are used in an attempt to obtain certainty, control or relief.

Avoidance and reassurance seeking

Situations are avoided, or the person relies on other people and online searches in an attempt to put the doubt to rest.

The term Pure O is sometimes used when obsessions are prominent. The name can be misleading, however, because compulsions may still be present in the form of mental rituals.

Visible compulsions may include checking the cooker, electrical appliances, the front door or taps; spending a long time in the shower; repeated handwashing; or rituals that must be performed in a particular way.

Rituals may be linked to fears of illness, financial loss, harming other people or losing possessions. Others experience a strong sense of being dirty or somehow wrong, or fear that they might become responsible for illness, death or an accident.

When symptoms mainly take place mentally, the themes may be sexual, violent, moral, relational or existential. Doubt may also focus on past events, the person’s own feelings or a fear of losing their mind.

Common strategies include repeated analysis, checking feelings, gathering evidence, repeatedly asking family members or searching online for reassurance that it is “only OCD”.

24 signs of OCD

OCD may appear through intrusive thoughts, doubt, visible rituals, mental compulsions and avoidance. The shared pattern is a recurring need for certainty, control or relief. This pattern can consume time, drain energy and restrict daily life.

Intrusive thoughts and doubt4 tegn
  • Intrusive thoughts, images or urges that keep returning
  • Repeated doubt, even after an answer has already been given
  • A need to obtain complete certainty
  • A need to find exactly the right answer to questions that have no certain answer
Visible rituals and fixed rules6 tegn
  • Fear of contamination, dirt or illness
  • Repeated handwashing, cleaning or use of barriers
  • Repeated checking of doors, the cooker, electrical appliances, taps or messages
  • A need to do things in a particular order, repeat or touch them, or make sensations feel even
  • A need for symmetry, order, precision or for something to feel exactly right
  • Fear of losing, misplacing or throwing away something important
Themes in the thoughts5 tegn
  • Unwanted thoughts about harming yourself or other people
  • Unwanted sexual, religious or moral thoughts
  • Doubt about relationships, feelings or whether you love someone in the right way
  • Doubt about past events or fear of having done something wrong
  • Existential doubt about the meaning of life, reality, identity or free will, including repeated why questions
Mental compulsions6 tegn
  • Rumination and repeated analysis of the same questions
  • Mental checking of thoughts, feelings, memories or bodily responses
  • Internal neutralising, counting, prayers or rules
  • Seeking reassurance from a partner, family, friends or clinicians
  • Searching online for relief or reassurance
  • Comparing yourself with other people to assess whether your thoughts or responses are normal
Avoidance, shame and daily life3 tegn
  • Avoidance of people, places, objects or situations that trigger OCD
  • Shame and secrecy about thoughts or actions
  • Symptoms that consume time, drain energy or restrict daily life

Hidden compulsions and avoidance

Some of the most burdensome OCD symptoms are difficult to recognise from the outside. They may unfold in the mind, in conversations with other people or through gradually arranging daily life around whatever triggers doubt.

Analysis and mental checking

Mental compulsions can be difficult to identify because they resemble ordinary thinking or problem-solving.

They may involve repeated analysis, reviewing past situations, testing feelings or searching for evidence that supports or refutes the feared conclusion.

Comparison may also function as a compulsion. A person might compare themselves with other people, with how they used to be or with ideas about how they ought to think, feel or respond.

In each case, the thinking becomes repetitive and urgent because it is driven by the need for certainty rather than by a problem that can actually be solved.

Reassurance seeking

Reassurance seeking involves asking other people to confirm that the danger is not real, that the person has not done anything wrong or that the thought is “only OCD”.

This may involve asking family members, a partner, friends or clinicians. It can also include online searches, reading forum threads, completing tests or looking for a particular phrase.

The answer may provide short-term relief, but the doubt often returns and creates a new need for reassurance.

In this way, family members and others close to the person may be drawn into the OCD pattern, even though they are trying to help by answering, checking or taking part in rituals.

Avoidance, shame and secrecy

In OCD, avoidance is often used to prevent distressing thoughts or doubt. A person may avoid particular situations, places, people, objects or information.

Distress may ease in the moment, but over time more things may begin to feel dangerous or wrong, allowing OCD to take up more of everyday life.

Examples include avoiding children, driving, the news, knives, places of worship, close relationships or situations in which a decision has to be made.

Many people with OCD feel ashamed of their thoughts or actions, particularly when the theme concerns harm, sexuality, religion, morality, relationships or past events.

Fear of how other people will respond may lead to secrecy and make it difficult to seek help. Visible behaviour therefore does not always reflect how much distress or disruption the person is experiencing.

Symptoms may look different and change form

OCD can change form with age, circumstances and theme. The visible content may change while the underlying pattern continues.

In children and young people

In children and young people, OCD may appear as anger, distress, getting stuck or a strong need for other people to do things in particular ways.

Other signs include repeated questions, bedtime rituals, avoiding school, relying on parents to help with rituals or strong reactions when rituals are interrupted. Read more about signs of OCD in children and young people.

When the theme changes

A new theme may feel like an entirely new problem even though the underlying pattern is the same: doubt, distress, an attempt to obtain certainty, brief relief and then renewed doubt.

Specific OCD types and themes can make it easier to recognise the pattern across different symptoms.

Looking more closely at the symptoms

An OCD test can help you examine symptoms more systematically and gain an overview of obsessions, compulsions, avoidance and their impact. OCD Klinikken’s test is designed to be completed on your own and includes guidance on how to interpret the result.

It is particularly worth looking more closely when the pattern recurs, is difficult to resist or begins to restrict daily life.

The impact of OCD is not measured only in time. Mental exhaustion, shame, anxiety, avoidance, conflict and restricted choices can be at least as significant.

Consider seeking help from a clinician with experience of OCD if symptoms begin to control your relationships, choices or daily routines.

OCD is treatable. Treatment includes learning to recognise the pattern, reducing compulsions and practising letting doubt and distress remain present without following OCD’s demands. Read about OCD treatment.

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