What is the reason for the cold bitter mouth

Cold generally refers to upper respiratory tract infection, the patient's bitter mouth is mainly considered to be caused by gastrointestinal dysfunction.

Upper respiratory tract infection is mostly caused by viral infection, such as respiratory syncytial virus, rhinovirus, coxsackie virus, etc. This virus can also infect the gastrointestinal tract after infection of the respiratory tract, causing gastrointestinal dysfunction, resulting in bitter mouth, nausea, vomiting, diarrhea and other symptoms. Patients due to malnutrition or cold, overwork and other circumstances can lead to low resistance, thus more prone to viral infection, causing upper respiratory tract infection and gastrointestinal dysfunction.