If snot is eaten into the stomach if it happens occasionally, it usually does not cause uncomfortable symptoms, but swallowing snot into the stomach for a long period of time may cause pharyngeal discomfort, and may even cause irritation to the mucous membrane of the gastrointestinal tract. Nasal snot is mostly due to water, protein, shed cells, airborne dust and other components of the composition of the occasional swallowed into the stomach once in a while, generally does not affect the body. If the snot is more, and more viscous, in the process of swallowing through the throat, may cause pharyngeal discomfort symptoms, such as foreign body sensation in the throat, coughing, coughing up phlegm and other symptoms. If you swallow snot into your stomach for a long time, especially a large amount of purulent snot, which contains more pathogenic bacteria and toxins, it may cause irritation to the gastrointestinal mucosa, causing indigestion, vomiting, abdominal distension and other symptoms. It is not recommended to swallow snot into the stomach for a long period of time, and it is recommended to go to the hospital for treatment under the guidance of a professional doctor.