Also known as the pyloric sinus, the pain of gastric sinusitis has no clear localization and is usually located in the mid to upper abdomen. The gastric sinus is a part of the stomach that aids in peristalsis and facilitates digestion of the gastrointestinal tract, as well as the elimination of food. The pylorus is the lower opening of the stomach, and the gastric sinus is between the pylorus and the plane of the gastric angular notch. The gastric sinus is a frequent site of digestive disorders and is most common in chronic gastritis. The pain of gastric sinusitis is not clearly localized and is usually located in the mid-upper abdomen. Patients with gastric sinusitis should usually have regular and moderate meals, with a variety of food types, but less spicy, barbecue, pickled and greasy food. Try to quit smoking and drinking, and exercise more in general. Appearance of gastric sinusitis should promptly seek medical treatment, cooperate with the doctor for targeted treatment or treatment.