Welcome letter

On behalf of the International Headache Society, we are delighted to invite you to the 22nd Congress of the International Headache Society. IHC 2025 will take place from 10–13 September 2025, in vibrant, cosmopolitan São Paolo, Brazil – our first time ever in Latin America!

Our meeting’s title, “Headache Care for All: Embracing the Challenge,” reflects the IHS commitment to improving the lives of women, men, adolescents, and children who live with headache throughout the world, from the most fortunate to the most underserved communities, by expanding their access to trained healthcare professionals.

IHC 2025 is designed to attract a wide range of healthcare professionals and medical specialists to join our global effort to reduce the burden of disease and to provide them training and guidelines that take into consideration their knowledge level, the availability of drugs and devices in the communities they serve, and their cultural backgrounds.

The Scientific Programme Committee has designed a programme that covers the most recent and exciting scientific discoveries in headache medicine – discoveries that improve understanding of pathophysiologies, refine use of costly drugs, uncover potential for the development of novel treatment approaches, challenge established and recent concepts, and examine the potential of innovative research tools and the promise of artificial intelligence.

We have invited nearly 150 established and junior faculty from more than 30 countries and all continents of the world as presenters. The knowledge and insights they bring from their diverse backgrounds and experiences promise to help the IHS maximise its global outreach.

The meeting will also provide ample time for the industries to present novel findings that expand the use of their drugs and devices to different classes of headache disorders and different populations.

Join us in São Paulo and dance to the rhythm of this energy-filled city! Let our Latin American friends and colleagues immerse you in the local culture. Taste the food, take in the sights, and experience all the fashion, fun, and friendliness the whole region and this spirited city has to offer.

IHC 2025 is guaranteed to be an intellectual and cultural experience you won’t forget!

Rami Burstein, PhD
Congress Chair, IHS President

Mario Peres, MD, PhD
Local Organising Chair, IHS President-elect