Skip to main content

News
Features
Voices
Education
Your Journey
Glossary
Subscribe

Aggressive SM

Joanna Johnson |

August 10th, 2026

A subtype of advanced SM marked by a high mast cell burden that leads to organ damage. Aggressive SM accounts for less than 10% of SM cases.

The SM Journey

Diagnosis Seekers
Newly Diagnosed
On Your Way
Long-Term Living

From the
SM Ambassador

Tara's latest posts

The winding road from daredevil to ‘professional patient’ with SM
How I live ‘the dash’ while navigating SM
Daily life with ISM: My toolkit for staying on track

Learn more about SM

Sign up for the latest news, perspectives, and information about SM.

Your news and information resource for systemic mastocytosis

Search for:

News
Features
Voices
Education
Contribute
About
Staff

Part of the Haymarket Medical Network

Rare Disease Companion (RDC) is a network of news and information websites that supports people living with rare diseases. Through accurate, authentic, and compassionate news coverage, feature-length articles, and patient-friendly educational material, RDC provides insights into living with rare diseases at every point along the patient journey.

Copyright © 2026 Haymarket Media, Inc. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed in any form without prior authorization. Your use of this website constitutes acceptance of Haymarket Media’s Privacy Policy and Terms & Conditions.