In this series

24 cases of ulcerative colitis and 23 cases of chronic colitis were treated with drug partition -moxibustion with total effective rates of 95. 83% and 95. 55% respectively

markedly excelled that of control group treated with western medicine. Comparison made on the results of the 15 cases of ulcerative colitis before and after treatment showed that drug partition - moxibustion inhibits humoral immunity and strengthens cellular immunity. It is suggested that the mechanism might lie on the adjustment on the abnormal ratio between T - lymphocytes subgroups

hence the self - immune state in the patient can be checked and the mucosal lesion in the intestine corrected.