Anal itching is the most common symptom in anorectal patients. Because there are too many causes, it is often difficult to treat.
To cure the disease, a clear diagnosis must be made first before correct treatment. After a clear diagnosis, it is best to know the cause of the disease before knowing how to prevent the occurrence of the disease. Anal itching is mostly a manifestation of skin diseases in the anal area and also a manifestation of anorectal diseases. Sometimes it is caused by the joint development of two diseases. For example, if hemorrhoids are severe, when internal hemorrhoids develop to the second degree, they will come out of the anus during defecation, and will repay themselves after defecation. When the internal hemorrhoids reach the third degree, they will obviously prolapse and cannot pay back on their own. When the fourth degree is more serious, the hand rest can only be temporarily returned, and immediately comes out again. They will not even be sent back, and will be stuck outside. As the hemorrhoids prolapse, the anus is not tightly closed, causing the mucus in the intestines to flow out along the gap between every two hemorrhoids. Those who have seen Taiwan fruit lotus mist will know that the protruding part under the mature fruit of lotus mist is very similar to hemorrhoids, and there is a gap between every two protrusions. Exuded mucus accumulates on the skin around the anus, and the anal area is inherently less susceptible to heat dissipation than other places, so it is easier to sweat. Mucus and sweat impregnate the skin of the anus, and the growth of fungi present in this area can cause anal eczema. Strictly speaking, this is a skin disease. The medicine prescribed by the dermatology department will have certain effect, but it will relapse after stopping the medicine. Moreover, most of the dermatological drugs contain hormones, which are not suitable for long-term use. Many patients have to go to the anorectal department to undergo hemorrhoid surgery, and anal itching can be better resolved.
There are too many reasons for anal itching, and there are many skin diseases, so I can't repeat them here. Hemorrhoids are related to anorectal diseases. Anal abscesses and anal fistulas can also cause itching due to purulent discharge. Colitis and proctitis can also cause itching because of the increase in mucus secretions. It is particularly pointed out here: prolonged anal itching should be checked for tumors of the proximal colon or anorectum. The relationship between the tumor and the cancer on the subject is: tumors include benign tumors and malignant tumors. Malignant tumors include cancer. Because there are hundreds of common and rare tumors, it is not easy to discuss them in detail here. For example, proximal colon cancer (sigmoid colon cancer) is closer to the anus, colon cancer will cause increased mucus secretion, the cancer itself will necrosis and fall off and cause bleeding, resulting in mucus blood in the stool, these secretions flow to the anus and become the most fungus With a good culture medium, the propagation of fungi can increase anal itching. So anal itching may also be a manifestation of cancer.