Brief, factual summary of the article in Slovak: Cannabinoid hyperemosis syndrome (CHS) is a clinical condition characterized by repeated episodes of nausea, vomiting and abdominal pain in regular marijuana users. The incidence of CHS has been increasing in recent years, probably due to the increasing prevalence of marijuana use. The diagnosis of CHS is based on clinical symptoms and exclusion of other possible causes. The treatment consists of abstinence from marijuana, which leads to the withdrawal of symptoms. Physicians should be familiar with CHS, as its early identification and management are important to alleviate patient suffering.