Anal diseases are a common category of diseases, and painful, difficult to heal themselves, recurring, causing great discomfort to the majority of patients. Coupled with the fact that people often consider this disease as unspeakable, they are unwilling to seek medical attention or cannot find a good doctor, which often causes delays and aggravation of the disease. Here, to introduce you to the common anorectal disease self-diagnosis, hope that we can do anorectal disease early know, early treatment, early healing, less pain. 1.What is the blood in the stool? Blood in the stool is the most common symptom of anorectal disease, but there are many kinds of blood in the stool, not every kind of blood in the stool is caused by anorectal disease. The most likely cause of anal diseases hemorrhoids blood in the stool, when you always appear after each stool anal drip blood, color or bright red, you can consider whether it is suffering from hemorrhoids. With this type of blood in the stool, the stool and blood are usually separated and do not appear to be mixed together. Hemorrhoids can manifest only as fresh blood in the stool or at the same time as a swelling felt in the anus after a bowel movement. Simply put, bright red blood in the stool that appears after a bowel movement is generally suspected of hemorrhoids. When there is fresh blood dripping from the stool and anal pain is evident during the stool, you should suspect anal fissure. There is also a rare case where the amount of blood is small, mixed with pus, and there is localized redness and swelling in the anus, which is likely to be a perianal abscess. Of course, there are other diseases that can also have blood in the stool, such as rectal polyps, this kind of blood in the stool, mainly on the surface of a blood stain, like a brush on a brush; secondly, rectal tumors, especially the lower location of the tumor, will also appear blood in the stool, tumor patients are often accompanied by weight loss, weight loss in a short period of time, most rectal tumor patients blood in the stool, blood and stool mixed, can be distinguished from In most rectal tumor patients, blood and stool are mixed, which can be distinguished from hemorrhoids; or, for example, ulcerative colitis, Crohn’s disease, etc., there will be blood in stool, but the color is mostly pink, mixed with pus and mucus, called mucopurulent stool. What requires more attention is when black stools are present. Black stool can be seen as an evolved version of blood stool. Once or twice in a while, you can first think about whether you have used animal blood foods such as duck blood or pig blood on the first day. If not, you should suspect whether it is gastrointestinal bleeding, especially black, tar-like stool, you need to immediately consult the hospital emergency or gastroenterology, because the acute gastrointestinal bleeding is very high risk. 2, the anal swelling is what happened? Many friends will mention that the anus is swollen when they are unable to see a doctor on site, telephone or information consultation, so what is going on with the anal swelling? A variety of anorectal diseases can cause the anus to swell up, but they swell in different ways, we can simply distinguish. The most common, usually feel the anus is not flat, there is a tug or bump, once the end of the bowel movement to become larger, take a hand to push a push can also be retracted, this is the swelling of hemorrhoids, swollen part is the external hemorrhoids and prolapsed internal hemorrhoids; if found after the bowel movement swollen, take a hand to push can not return, there is unbearable pain, you can see pink tissue stuck in the outside of the anus, this is embedded hemorrhoids, need to see the anorectal department The first thing you need to do is to see an anorectal doctor for early treatment; furthermore, if the swollen area is red and you feel feverish and painful, or even if you have a fever that doesn’t go away, it’s likely to be a perianal abscess, so you should look for an anorectal doctor. The actual fact is that you can find a lot of people who have been in the business for a long time. 3, anal pain is what happened? Pain is also one of the important symptoms of anal diseases. Different anal diseases often lead to different types of pain. Anal fissures are most likely to cause anal pain, tear-like or knife-like pain in the anus during stool, and sudden spasmodic sharp pain after a period of time, which can be basically identified as anal fissures; the embedded hemorrhoids mentioned in the second article will also have anal pain, which is a kind of intense pain, and the internal hemorrhoid tissue stuck outside the anus can be felt or seen locally in the anus, which can be easily distinguished from other diseases; when the anus appears The pain of perianal abscess is also easy to distinguish, mainly heat pain and swelling pain, and local redness and swelling can also be seen. These are the common manifestations of anorectal diseases, but of course there are other rare manifestations such as perianal itching, discharge, and superfluous organisms. Here is a brief introduction to the differences between common anorectal diseases, I hope you can gain something after reading it, when you or your friends and relatives have related problems, you can find the first time, accurate anorectal consultation, to prevent misdiagnosis and leakage, and get rid of the disease as soon as possible.