The stomach still hurts after polyp removal under gastroscopy may be caused by concurrent ulcers and inflammation at the polyp site, or other parts of the body may be diseased. Usually, after the removal of gastric polyps, because of the surgical operation and trauma, it is possible to trigger a short-term hidden pain in the gastrointestinal tract. If the pain in the stomach lasts for a longer period of time, it may be due to other stomach diseases, such as chronic gastritis and gastric ulcer caused by the infection of Helicobacter pylori, and it may also be related to the inflammation of the wound caused by the poor healing of the wound after the removal of the gastric polyp. There are many other causes of stomach pain, and it can also be other parts of the disease, such as angina that manifests itself as stomach pain. If the patient’s symptoms are serious, or continue to fail to improve, it is recommended to go to a regular hospital in a timely manner, after clarifying the cause of the disease, under the guidance of the doctor to carry out targeted treatment.