The exact cause of many anorectal diseases is still unknown, but through clinical observation, found that people’s physique, life and living, eating habits and the occurrence of intestinal disease has a close relationship. The “fire” body and “wet” body people are prone to anorectal disease. The “fire” physique has “real fire” and “false fire”. The “real fire” constitution is mainly manifested as a strong body, bright voice, quick temper, often dry stool, urine yellow shame taste, easy to “on fire”; “false fire” constitution is mainly manifested as The main manifestations of “deficiency fire” physique are thinness, often hot hands and feet, irritability, dry mouth and throat, insomnia and dreaminess, dry stools, etc. The “wet” constitution is mainly manifested by fat body, feeling heavy, internal fire is delusional, internal fire forces blood to move delusively, and the fire evil torments the fluid in the intestines, making the stool constipated and prone to anorectal diseases such as blood in the stool, anal fissures, and perianal abscesses. The “wet” constitution is prone to the accumulation of dampness and heat in the stomach and intestines with the operation of the internal Qi of the stomach and intestines (intestinal peristalsis is a manifestation of the operation of the internal Qi of the stomach and intestines), which can lead to anal diseases such as external hemorrhoids, blood in the stool, anal swelling and pain, and anal itching. In addition, children and the elderly who are deficient in yang qi and have a “qi deficiency” physique are prone to prolapse, rectal prolapse, and hemorrhoids that do not close (i.e., the middle qi is trapped) and other anorectal diseases. The physical condition suitable for the disease will develop when combined with the causative factors. For example, drinking strong alcohol, eating spicy food, etc. Of course, the susceptible body can only say that under the same conditions than other physical people susceptible to such diseases, but not necessarily to suffer from such diseases. As long as you have good habits of living, eating and hygiene, people who are susceptible to anal disease can be safe from anal disease. On the contrary, people who are not susceptible to anorectal disease can also suffer from anorectal disease. In other words, under normal circumstances, internal factors are the leading cause of disease, and external factors are the conditions of disease, and external factors work through internal factors, but when external factors accumulate to be strong enough, they can also cause disease.