Want to vomit after exercise may be the physiological reaction caused by exercise stimulation of the gastrointestinal tract, may also be gastritis, gastric ulcer and other pathological factors. 1. Physiological factors: after strenuous exercise may inhale too much cold air, cold air stimulation of the gastrointestinal mucosa, causing nausea, vomiting and other symptoms; strenuous exercise caused by insufficient supply of oxygen to the body, resulting in nausea, vomiting, headache and other symptoms; muscle spasms after exercise can also cause abdominal pain, nausea, vomiting and other symptoms. 2. Pathological factors: (1) gastritis: acute and chronic damage to the gastric mucosa caused by Helicobacter pylori infection, aspirin and other non-steroidal drugs, etc. Skeletal muscle blood supply is abundant during exercise, and the blood supply to the gastrointestinal tract is relatively insufficient, which can cause local ischemia in the damaged gastric mucosa, and further aggravate the symptoms of pain, gastric distension and nausea. (2) gastric ulcer: excessive secretion of gastric acid, Helicobacter pylori infection and other factors can cause the gastric mucosa to appear localized ulcers, exercise can cause an increase in gastric acid secretion, further aggravate stomach pain, acid reflux, nausea, heartburn, vomiting, loss of appetite and other symptoms. It is recommended to consult a doctor for a clear diagnosis and targeted treatment under the guidance of the doctor.