What is demand avoidance, and is PDA a diagnosis in the UK?

The short answer

Demand avoidance means resisting, delaying, escaping or controlling an activity experienced as a demand. It can occur for many reasons, including not understanding, difficulty starting or switching, sensory or physical discomfort, anxiety, uncertainty, loss of autonomy, previous harm or ordinary disagreement. PDA, usually expanded as pathological demand avoidance, is used by some families and professionals to describe a persistent pattern in which everyday demands can provoke an intense need to avoid or control. It is not a standalone diagnosis in the ICD or DSM, and there is not strong evidence that the proposed PDA traits form one validated clinical group. A clinician may record demand-avoidant features within an autism assessment or broader formulation, but practice varies. Ask for assessment of the child's actual needs, health, communication, environment and impact rather than making access to help depend on agreement about one label. Support should be tested against the individual pattern and must not conceal unsafe, painful or unreasonable demands.

• Demand avoidance describes a response pattern, not one proven cause.
• PDA is not a standalone diagnosis in the ICD or DSM, and UK practice varies.
• Record what counts as a demand, what happens before and after, and which conditions change the response.
• Ask services to assess health, communication, anxiety, sensory conditions, task access and impact.
• Judge strategies by reduced distress, safer participation and usable communication, not quiet compliance alone.