There are many malignant symptoms of uterine fibroids, which are mainly as follows: 1) After suffering from malignant uterine fibroids, uterine fibroids may increase in size all of a sudden, and at the same time, masses may appear in the abdomen.2) Uterine fibroids may cause certain pressure on the surrounding tissues and organs, and there may be various symptoms such as difficulty in defecation or urination, etc. 3) Some patients may also suffer from prolonged menstruation, increased menstrual bleeding, and may also trigger hemorrhage, etc. 4) Malignant uterine fibroids may cause backache, swelling of stomach, general discomfort, abdominal pain and other obvious symptoms. Some patients with malignant uterine fibroids may have prolonged menstruation, increased menstrual blood flow and hemorrhage. 4. Malignant uterine fibroids may cause back pain, stomach distension, general discomfort, abdominal pain and other obvious manifestations. It is recommended to go to the hospital for examination and treatment in time, which may be accompanied by other complications, so you must pay attention to know your own physical symptoms, pay more attention to rest and avoid overwork.