Awareness Day

2025
Gallery

Awareness Day

20 October 2025

Each year, people around the world come together on International Mastocytosis & Mast Cell Diseases Awareness Day to shine a light on mast cell diseases. Browse our past Awareness Day photo galleries to see how our community has grown and united since 2018.

Help us expand the collection and raise even greater awareness — share your Awareness Day photos with us for inclusion in our online gallery and on Facebook and Instagram via email.

Cyprus

France

Germany

Spain

USA

Blueprint Medicines’ office in Cambridge, Massachusetts, lit up on 20 October for Awareness Day 2025.

Blueprint Medicines in Cambridge - 2025