The presence of fecal and bloody discharge in the vagina is due to the fact that the cancer of the anterior rectal wall in women can infiltrate the posterior vaginal wall when it penetrates the intestinal wall, causing increased leucorrhea; if it penetrates the posterior vaginal wall, it forms a rectovaginal fistula, thus causing fecal and bloody discharge in the vagina. It is a symptom of rectal cancer that is clinically manifested. In the early stage of rectal cancer, there is often no obvious symptom or no specific symptom, so it often fails to attract the attention of patients and primary care physicians. Then, what are the preventive methods for fecal and bloody discharge in the vagina? The following is an explanation. The prevention of fecal and bloody secretion in the vagina: 1, actively prevent and treat rectal polyps, anal fistula, anal fissure, ulcerative colitis and chronic intestinal inflammation; for multiple polyps and papillary polyps, once the diagnosis is clear, they should be surgically removed early to reduce the chance of cancer. 2.Diversify diet, develop good eating habits, do not be partial or picky, do not consume high-fat and high-protein diet for a long time, and often eat fresh vegetables containing vitamins and fiber, which may play an important role in cancer prevention. 3.Prevent constipation and keep the bowel movement smooth. 4.Pay great attention to regular cancer prevention screening, pay attention to self-examination at any time, improve vigilance, and carry out timely diagnosis and treatment after finding warning signals to achieve early detection and early treatment in order to improve the survival rate of rectal cancer.