Short answer · Medically reviewed summary · Last updated: 2026-05-08
Hyperemesis Gravidarum is not a contagious disease and cannot be spread through physical contact, respiratory droplets, or any other form of transmission. It is a complex pregnancy-related condition characterized by severe nausea and vomiting, and it poses no risk of infection to family members, friends, or caregivers. What is the actual cause of Hyperemesis Gravidarum? Hyperemesis Gravidarum is not caused by an infectious pathogen, but rather by a combination of hormonal, genetic, and environmental factors.
3 people with Hyperemesis Gravidarum have shared their first-person experience on this question at DiseaseMaps.
Hyperemesis Gravidarum is not a contagious disease and cannot be spread through physical contact, respiratory droplets, or any other form of transmission. It is a complex pregnancy-related condition characterized by severe nausea and vomiting, and it poses no risk of infection to family members, friends, or caregivers.
Hyperemesis Gravidarum is not caused by an infectious pathogen, but rather by a combination of hormonal, genetic, and environmental factors. Current research suggests that the rapid rise in hormones like human chorionic gonadotropin (hCG) and estrogen during pregnancy plays a significant role. Genetic studies have also identified specific gene variants, such as those related to the GDF15 hormone, which may increase a person's susceptibility to developing Hyperemesis Gravidarum.
Because Hyperemesis Gravidarum involves symptoms like persistent vomiting, which can sometimes be associated with viral gastroenteritis (the "stomach flu"), some people mistakenly assume it is contagious. Unlike infectious illnesses, Hyperemesis Gravidarum is a systemic condition affecting the digestive, endocrine, and nervous systems, and it is strictly tied to the physiology of pregnancy.
While Hyperemesis Gravidarum is not infectious, certain environmental factors can exacerbate symptoms. Common triggers that may worsen the nausea and vomiting associated with Hyperemesis Gravidarum include:
It is crucial to recognize that Hyperemesis Gravidarum is a medical diagnosis, not a psychological choice or a failure of the mother. With 424 members of the DiseaseMaps.org community sharing their experiences, it is clear that many patients face unnecessary stigma. Living with, caring for, or touching someone with Hyperemesis Gravidarum is completely safe and carries zero risk of illness.
Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.