Sacral tumor is divided into benign and malignant, and the specific symptoms are as follows: 1. benign: manifesting as swelling growth, causing compression of nerves around the sacrum and lower limb nerve compression symptoms, such as urinary and fecal incontinence; 2. malignant: can cause serious bone destruction around the sacrum, double lower limb nerve dysfunction and urinary and fecal incontinence, which brings greater disturbance to patients’ life and work. It is suggested that patients with the above symptoms should go to the doctor in time for further examination to clarify the nature of sacral tumor and adopt appropriate surgical plan for treatment.