Frequent Illness
A pattern of getting ill more often than expected — particularly with infections — suggesting possible immune dysregulation, nutritional deficiency, or chronic stress.
Quick answer
Frequent illness describes a pattern of recurrent infections or illness episodes beyond what is expected for age and context. ICD-10: D84.9 (immunodeficiency, unspecified), Z29.1; ICD-11: 4A8Z. May reflect primary or secondary immune deficiency, chronic stress, nutritional deficiency, or exposure-related factors.
Recognition
Do any of these feel familiar?
People describe feeling they never fully recover between illnesses, having a cold that leads immediately into another, missing work or social activities regularly due to recurring illness, and feeling their body's defences are inadequate.
What is Frequent Illness?
A pattern of getting ill more often than expected — particularly with infections — suggesting possible immune dysregulation, nutritional deficiency, or chronic stress.
Approaches Commonly Explored
Commonly explored for conditions related to Frequent Illness, grouped by mechanism — select your subtype above to highlight the most relevant path.
How to use these approaches
Most people begin with Stabilise approaches, then progress toward Resolve and Sustain.
Systemic or neuroinflammation and immune dysregulation.
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Self-care
What You Can Do Now
Self-directed strategies that may support Frequent Illness alongside professional care.
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