Pathological demand avoidance (PDA)
PDA describes a profile in which everyday demands and expectations cause high anxiety, leading a person to avoid them. It is not a separate diagnosis in UK diagnostic manuals and the term itself is debated.
Overview
PDA is most often discussed as a profile of autism. Some clinicians record it in reports while others do not use the term. Many families and autistic people prefer phrases such as 'persistent drive for autonomy'.
Common characteristics
People described as having a PDA profile may resist requests, including things they want to do, use social strategies to avoid demands, and experience sudden shifts in mood linked to anxiety.
Everyday life
Direct instructions, rigid rules and time pressure can increase anxiety. Families often use choice, collaboration and low-demand language to make outings possible.
Environmental considerations
Flexible environments that offer choice and avoid unnecessary rules reduce pressure.
Support and adjustments
Offer choices instead of instructions, reduce non-essential demands, and allow time and space. Speak to the family about what works.
Further reading
The National Autistic Society and the PDA Society describe the profile and current debate.
Practical access considerations
- Offer choices rather than instructions
- Reduce non-essential rules
Official sources
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This article is general information, not a diagnosis or professional advice. Provider services change, so always check official links before you travel or visit.