If sacral tumor is in the early stage, it usually has no obvious symptoms, but with the aggravation of the condition and the enlargement of the tumor, local pain, swelling, incontinence and so on may occur. 1. Local pain: sacral tumor will gradually invade the surrounding tissues with continuous development, which will cause local pain and swelling of sacrum. And the pain will also radiate to one side or both sides of the buttocks. 2. Urinary and fecal incontinence: If the growth of sacral tumor presses the nerves of the lower limbs, it will easily cause numbness of the lower limbs, which will be aggravated especially after getting cold and exertion. If it is serious, it will lead to double lower limbs dysfunction and urinary and fecal incontinence. In addition, if the body has any discomfort, timely consultation, daily life should maintain a good mood, regular life, quit smoking and alcohol, is more conducive to good health.