Old blood pulling may be caused by hemorrhoids, rectal cancer, ulcerative colitis and other diseases.
1. Hemorrhoids: It is a common anorectal disease, which is a swelling of the veins at the anus and rectum. It is mainly characterized by bleeding during stool, itching and pain around the anus. Thus, it causes blood pulling all the time.
2. Rectal cancer: it is the cancer that occurs between the junction of sigmoid colon and rectum and the dentate line. There is no obvious symptom in early stage, but in middle and late stage, patients may have symptoms such as blood in stool, pus and blood in stool, change of stool habit, change of stool character, abdominal pain and so on. It can also cause old blood pulling.
3. Ulcerative colitis: it is a kind of inflammatory bowel disease with unknown etiology. The main manifestations are repeated episodes of abdominal pain, diarrhea and mucus, pus and blood stools. It can also cause blood pulling all the time.
There are many other causes of blood pulling, which should be emphasized, timely consultation, identify the cause of the disease, and follow the doctor’s instructions for further treatment or therapy.