Which symptoms of cervical cancer can threaten patients’ life safety? Cervical cancer is a common malignant tumor with high mortality rate. Some patients’ conditions change or even deteriorate after treatment, and the complications that occur are threatening to patients’ life safety. 1. Increased vaginal discharge Most often occurs before vaginal bleeding. Initially, the vaginal discharge may not have any smell, but with the growth of cancer tumor, secondary infection and necrosis, the amount of discharge will increase, such as rice water-like or mixed with blood, and with foul odor. When the tumor spreads upward and involves the endometrium, the vaginal secretion is blocked by the cancerous tissue in the cervical canal and cannot be discharged, which can form fluid or pus in the uterine cavity, and the patient can have symptoms such as lower abdominal discomfort, abdominal pain, back pain and fever. Pain is a symptom of advanced cervical cancer. The cancer tumor extends along the parietal tissue, invades the pelvic wall and presses the peripheral nerve, which is clinically manifested as persistent pain in sciatic nerve or one side of sacral and iliac area. The tumor compresses or encroaches on the ureter and causes pelvic fluid accumulation due to narrowing and obstruction of the duct, which is manifested as back pain on one side or even severe pain. 3.Other symptoms Secondary symptoms appear in the scope of lesion invasion. When the lesion spreads to pelvic connective tissue, pelvic wall, compressing ureter or rectum and sciatic nerve, patients often complain of frequent urination, urgent urination, anal swelling, constipation, shortness of breath, swelling and pain of lower limbs, etc. In serious cases, it leads to ureteral obstruction and hydronephrosis, and finally causes uremia. At the end of the disease, patients may suffer from emaciation, anemia, fever and general failure. Once cervical cancer is diagnosed, patients must go to regular hospitals for treatment in time, and should not be left to fate, thinking that they will surely die if they have cancer.