ADHD and OCD: How they overlap

You can have ADHD and OCD at the same time, making symptoms harder to manage. Find out how they’re connected, how they’re diagnosed, and where to get support.

Man wearing a red jumper smiling and looking into the distance.
Danielle Mulligan
Medically reviewed by Danielle Mulligan Nurse Independent Prescriber

Reading time: 3 min

Uploaded on: January 21, 2026

It's possible to have both ADHD and OCD, though it's not very common.

  • ADHD can make it difficult to stick to OCD rituals.
  • OCD can increase anxiety, which makes it even harder to focus.
  • They share symptoms like restlessness, but differ in how behaviours are triggered.

Example: with ADHD, you might keep moving or fidgeting, while with OCD, restlessness feels like needing to constantly rearrange or fix things.

Treatment is often combined with therapy and coping tools.

What is ADHD?

ADHD (attention deficit hyperactivity disorder) is a condition that affects how your brain develops and manages focus, activity levels, and self-control.

It’s usually diagnosed in childhood, but it can continue into adulthood too.

People with ADHD often experience a mix of the following:

  • Inattention: Finding it hard to concentrate, stay organised, or finish tasks.
  • Hyperactivity: Feeling restless, always on the go, or talking a lot.
  • Impulsivity: Acting without thinking, interrupting others, or struggling to wait.

Everyone might show some of these behaviours now and then. But with ADHD, they happen more often and in different situations, like at school, at work, or in social settings.

What is OCD?

OCD (obsessive compulsive disorder) is a mental health issue where people get stuck with unwanted thoughts and feel driven to repeat certain behaviours.

It often begins in adolescence or early adulthood, but it can start in childhood too.

People with OCD experience:

  • Obsessions: Disturbing and persistent thoughts, urges, or images that cause a lot of anxiety.
  • Compulsions: Repetitive actions or mental rituals they feel they must do to reduce that anxiety.

Example: If you worry about break-ins, you might feel the need to check your locks over and over before leaving the house, even if you just checked a minute ago.

Read about:

Common Symptoms and Differences between ADHD and OCD

Diagnosis and Treatment

Challenges, Coping Strategies, and Support

Reading time: 3 min

Uploaded on: January 21, 2026

Dr Daniel
Medically reviewed by Danielle Mulligan Nurse Independent Prescriber Registered with GMC (15A0206E) January 21, 2026 Meet Danielle Mulligan
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Written by Focused Content Team
Last updated on January 23, 2026
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