There are several possible causes of hidden pain below the left rib cage in women: first, intercostal neuralgia, patients with intercostal neuralgia can experience pain below the rib cage where the intercostal nerve travels, often hidden, stabbing or radiating pain, which should be diagnosed by early examination and, if necessary, treated with nerve nutrition and closure; second, herpes zoster, which can occur in the early stages of herpes zoster on one side of the chest Herpes zoster, in the early stage of herpes zoster, can appear as vague pain or tingling at one side of the rib cage, and after 1-2 weeks of incubation period, clusters of herpes can appear, which should be diagnosed and treated early by related dermatology; third, rib diseases, when tumors or metastases appear in the rib cage, vague pain at the rib cage can also appear in the early stage, which should be diagnosed by early CT and ECT examination of the rib cage; fourth, pleural diseases, when tumors or inflammation appear in the pleura When a tumor or inflammation occurs in the pleura, pain below the rib cage can occur, often as a hidden pain, and CT examination of the lungs should be performed for early diagnosis and pathological examination if necessary.