Early stage gastric cancer usually does not cause left rib pain like forked breath. If a patient with gastric cancer has left rib pain like forked breath, it may be caused by the progression of gastric cancer and the spread of cancer cells, resulting in pain in the left abdomen radiating to the left ribs and scapula, and should actively seek medical treatment to detect metastasis in time. In addition, left rib pain may also be caused by overexertion, trauma, inflammation and other factors. For patients with further spread of gastric cancer leading to aggravation of the disease, due to abnormal proliferation of plasma cells leading to increased bone destruction, involving the ribs may cause left rib pain. If patients are overworked or have trauma to the left rib cage, they may have fork-like pain. In addition, if patients with early stage gastric cancer are combined with diseases such as costochondritis, intercostal neuritis or chronic liver disease, inflammatory stimulation or disease invasion may also cause left rib pain. As mentioned above, there are many reasons that cause left rib pain like forked gas. For rib fork-like pain caused by aggravation of gastric cancer, surgery, radiotherapy and targeted therapy can be chosen under the guidance of doctors. If the pain is caused by trauma, inflammatory irritation or other diseases, it needs to be treated in combination with different clinical manifestations. For example, fork-like pain caused by costochondritis or intercostal neuritis, nerve-nourishing drugs such as vitamin B12 can be used, and painkillers such as ibuprofen can be applied, or local anesthetic drugs can be used for closed treatment.