Written Question·Department of Health and Social Care·UIN 124217

Mast Cell Activation Syndrome

Tabled: 26 March 2026

Question

Liz Jarvis

Liberal DemocratEastleigh

To ask the Secretary of State for Health and Social Care, whether Mast Cell Activation Syndrome is recognised within NHS England; whether national diagnostic guidelines for MCAS are being developed, including in relation to its association with neurologic