After the recurrence of rectal cancer, there will be symptoms such as localized pain, localized lumps and stool changes. 1. Localized pain: in the early stage of rectal cancer recurrence, patients will have the symptoms of falling down in vulva and pain in anus, some patients will also have sacral pain, and when the situation is serious, the pain will be radiated to the lower limbs, and the lower limbs will have pain. 2. Localized lumps: after recurrence of rectal cancer, nodules will appear in anus or pubic area, forming lumps, which are usually hard and painful when pressed. 3. Change of stool: after recurrence of colon cancer, the state of stool will be changed and the habit of defecation will be changed, and the patient may have the symptoms of irregular stool, constipation and diarrhea alternately, etc. If there is any change of stool after recurrence of rectal cancer, the patient may have the symptoms of constipation and diarrhea. If there is metastasis to urinary system after rectal cancer recurrence, it may cause urinary system symptoms, so patients should have regular review to avoid recurrence.