Irregular shape of the uterine cavity has the following meanings: 1. submucosal fibroids growing into the uterine cavity will be found to be irregular in shape by ultrasound examination. 2. as endometrial polyps will make the endometrium appear echogenically uneven under ultrasound examination, they will also show irregular shape. 3. as there is residual tissue material in the uterus, it will lead to irregular shape. It is recommended to combine the clinical history and then give the corresponding analysis, and then make the next step according to the ultrasound diagnosis. If there are residual tissues in the uterus, it is recommended to give clearance surgery according to the situation. In case of anemia caused by submucosal fibroids, surgery can be given for treatment.