What causes fever and stomachache?

The causes of fever and stomachache may be related to upper respiratory tract infection, acute gastroenteritis, acute gastritis, etc. The specific analysis is as follows:

1. Upper respiratory tract infection

Due to the large number of pathogens in the upper respiratory tract infection, toxins will be released to stimulate the thermoregulation center and gastrointestinal mucosa, resulting in fever and stomachache.

2. Acute gastroenteritis

Due to acute gastroenteritis, it will not only cause gastrointestinal dysfunction, resulting in severe contraction of the gastrointestinal tract, stomachache, but also easy to cause low immune function of the body.

3. Acute gastritis

due to acute gastritis will not only destroy the gastric mucosa, resulting in stomachache, but also release inflammatory factors into the blood circulation. This substance is a heat source, which will affect the function of the thermoregulation center and cause fever.