What Does “Comorbid” Mean?
Comorbid means having two or more conditions at the same time.
For example, someone might have ADHD and anxiety, or ADHD and depression together.
These conditions may overlap or worsen each other.
ADHD Can Happen With Other Conditions
ADHD doesn’t always travel alone.
Many people with ADHD also have other mental health or learning conditions.
Common conditions that may co‑occur with ADHD include:
• Depression – long periods of sadness and low energy
• Anxiety disorders – worry, fear, or nervousness that is strong or long‑lasting
• Learning disabilities – like dyslexia or dysgraphia
• Autism spectrum disorder – often overlaps with ADHD
(Note: These aren’t the only possible combinations, but they are common ones.)
Why Comorbidity Happens
Some reasons conditions co‑occur include:
• Shared brain processes or biology
• Similar symptoms that overlap
• Long‑term effects of struggling with ADHD (like low self‑esteem)
For example:
• ADHD can make school and work harder, which can contribute to feelings of depression.
• Anxiety symptoms can be similar to ADHD symptoms (like restlessness).
Common Comorbid Patterns
• Many people with ADHD also have anxiety or depression.
• Sometimes ADHD and depression happen at the same time, especially in adults — up to 70–80% of people with ADHD have another mental health condition.
• ADHD can also occur with learning difficulties like dyslexia.
Why This Matters
Comorbidity means:
✔ More than one condition needs to be understood and treated
✔ It can make diagnosis more complex
✔ Treatment may need to address both conditions together
This is important because treating just one condition might not help if another is present at the same time.
Signs Something Might Be Comorbid
Look for signs such as:
• Problems with attention and anxiety
• Difficulty focusing and sadness or low mood
• Struggles with learning plus ADHD symptoms
• Panic, worry, or avoidance along with executive functioning challenges
Getting Help
If someone has ADHD and another condition, support may include:
✔ A complete assessment by a healthcare professional
✔ A tailored treatment plan (therapy, medication, education support)
✔ Strategies for managing overlapping symptoms
✔ Support from family or caregivers
Key Points to Remember
• ADHD often occurs with other conditions.
• Comorbidity means more than one condition is present.
• Recognising comorbidity helps get better support.
