• Julien Flament, Nathan Scius, and Henri Thonon.
• Emergency Department, CHU UCL Namur, 1, rue Dr G. Therasse, 5530 Mont-Godinne, Yvoir, Belgium. julien.flament@uclouvain.be.
• Int J Emerg Med. 2020 Oct 28; 13 (1): 52.

BackgroundCannabis use is on the rise. Several cases of cannabinoid hyperemesis syndrome, secondary to chronic cannabis intoxication, have been described worldwide, but few cases have described this entity in pregnant women.Case PresentationWe describe a 29-year-old pregnant patient that had consumed cannabis and experienced uncontrolled vomiting. The use of hot baths, the rapid improvement in symptoms, and results of complementary examinations suggested a diagnosis of cannabinoid hyperemesis syndrome. The patient could return home, and she continued her pregnancy and childbirth without peculiarities.ConclusionCannabinoid hyperemesis syndrome should be considered in the differential diagnosis of vomiting in pregnancy. Consumption of cannabis must be systematically included in the anamnesis. However, it seems to be somewhat unacceptable socially or medically. Consumption must be stopped to manage symptoms.

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