Left upper abdominal pain may be caused by gynecological diseases, such as tubitis, adnexitis, ovarian cysts, fibroids, pelvic inflammatory disease, kidney stones, ureteral stones, and urinary tract infections, which can also cause abdominal pain. This discomfort can also be caused by ectopic pregnancy or miscarriage after pregnancy, and can also cause vaginal bleeding. Improper diet can easily lead to indigestion and stomach discomfort, which can lead to vague pain in the upper left abdomen, and if the abdomen gets cold during menstruation, it can easily lead to dysmenorrhea, which can cause this discomfort. The occurrence of vague pain in the upper left abdomen requires timely ultrasound examination, and also requires early pregnancy examination, kidney ultrasound examination, routine urine examination, etc., and reasonable treatment according to the specific situation. If it is gynecological inflammation, you need to take metronidazole for treatment, urinary tract infection can be treated with ofloxacin, and if it is caused by stones, you can take lithotripsy granules. Ectopic pregnancy needs to be solved by surgery; miscarriage precursors need to use progesterone to preserve the fetus.