There are many causes of low platelet left upper abdominal pain in women, common causes include pancreatitis, peptic ulcer, myocardial infarction; low platelet causes include thrombocytopenic purpura, hypersplenism, malignant hematologic disorders and so on. 1.Common causes of left upper abdominal pain in women (1) Pancreatitis: Pancreatitis may cause diffuse pain in the left upper abdomen, which may also radiate to the back and both ribs. (2) Peptic ulcer: gastric ulcer, in particular, can lead to worsening of pain symptoms after eating, and can also be accompanied by recurrent episodes of nausea, vomiting, acid reflux and belching. (3) Myocardial infarction: Myocardial infarction may also lead to pain in the left upper abdomen, and patients with myocardial infarction will experience severe and persistent pain behind the sternum. 2. Common causes of low platelet count in women (1) Thrombocytopenic purpura: this kind of disease can also lead to platelet reduction. (2) Hypersplenism: one of the three major clinical manifestations of this disease is lowered platelets. (3) Malignant hematologic diseases: such as leukemia, myelodysplastic syndromes, and so on. There may be other causes of low platelet left upper abdominal pain in women, such as aplastic anemia, infections, gastritis, stomach tumors, etc. Both can be caused by the same disease, or by different diseases, it is recommended to consult a doctor in time, and the specialist to determine the specific cause.