Welcome - Mastocytosis and Mast Cell Activation Disorders Community

What is Mastocytosis and Mast Cell Activation Disorders ?

Mastocytosis is a rare disorder characterized by abnormal accumulations of mast cells in skin, bone marrow, and internal organs such as the liver, spleen and lymph nodes. In the disorders of mast cell activation, mast cells are easily triggered to release their mediators, resulting in many of the same symptoms as systemic mastocytosis.

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Latest Member Stories

The Journey of MCAS

by Sarahsmcas published 3 months ago

The last 10 years or so of my life have had one main constant, and that is the reality of being a "professional patient". That's what I've been do...

I'm new to this "weirdo mast disease" (as my allergist calls it).

by happy_tigs published 4 months ago

It all started about three years ago when I started having hives all over my body randomly, every few weeks to few months. I chocked it up to stres...

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