In severe cases of rectal cancer recurrence symptoms due to invasion of ureter, bladder, vagina, etc., the corresponding urinary system rectal cancer recurrence symptoms and vaginal bleeding water appear. However, patients with early recurrence often have no obvious symptoms and are only detected during routine follow-up examinations. Therefore, for post-operative patients with rectal cancer should adhere to consolidation therapy after surgical treatment. Especially, they should be reviewed every three months in the first few years. Only to fundamentally reduce the recurrence and mortality of rectal cancer after surgery and prevent various complications. What are the recurrence symptoms of rectal cancer? 1, change of stool habit and blood in stool and other anal finger diagnosis are common diagnostic methods for recurrence of rectal cancer after surgery. Patients with recurrence of rectal cancer after surgery may have blood in stool or change in bowel habits, etc. 2.Urological symptoms Patients with recurrence of rectal cancer after surgery may have corresponding urological symptoms of recurrence of rectal cancer due to the invasion of ureter and bladder by cancer cells. Pain is the most common initial symptom of postoperative recurrence of rectal cancer. Patients often have perineal drop, sacral pain and radiation to lower limbs when rectal cancer recurs. 4.Masses Patients with postoperative recurrence of rectal cancer can find nodular masses under the skin of perineum, with hard texture and pressure pain.