The 28th annual Congress of Internal Medicine was held at Iran University of Medical Sciences in Tehran from May 15 – May 18, 2017. At the internist congress, over 200 professors and scientists were invited from medical sciences universities across the country, and more than 182 abstracts and articles were accepted at the congress office as a result of all the efforts put in by Iranian researchers in the internal medicine field. Rossen Darman closely cooperated with the Internist Society in running several activities at the congress, and had a very strong booth presence in front of the entrance.