Causes of anal pain due to diarrhea

Many people experience anal pain when they have diarrhea. There are many factors that cause this symptom. Therefore, many patients with this symptom want to fully understand the causes of anal pain when they have diarrhea in order to get treatment and recover as soon as possible. The following content provides specific answers, and you can read the expert’s detailed introduction.

Experts say that the end of the human large intestine is the rectum, which is connected to the anal canal. Because the lower end of the rectum is connected to the smaller anal canal, the mucosa has 8-10 raised folds called anal columns. There is a semilunar fold between the bases of two adjacent anal columns - the anal valve, and there are many pouch-like pits between the anal valve and the anal columns, called anal sinuses. That is to say, there are many "traps" on the anal canal mucosa, so the anal canal is prone to injury and infection, especially when the stool stays in the intestine for a long time and becomes dry and hard, it is easy to cause damage to the mucosa. If the injury is not treated in time, an abscess will form. The abscess gradually expands outward, "carving out" one or more "side doors" through the skin, thus forming an "anal fistula".

Therefore, anal fistula is mostly caused by anorectal abscess that is not treated promptly and correctly. Generally, when an anal fistula is first formed, there will be a lot of pus discharge with a fecal odor, yellow and thick color, and sometimes feces will flow out. Over time, the pus will gradually decrease and the discharge will be intermittent. When eating too much spicy food, alcohol and other irritating foods, there will be more pus. When the fistula is unobstructed, there is generally no pain, only a feeling of heaviness and swelling in the anus.

In addition, itching may occur due to the continuous infiltration of pus into the skin around the anus, and may sometimes be accompanied by perianal fistula. The fistula near the anus appears as a nipple-like protrusion or granulation tissue bulge due to repeated stimulation of inflammation, and feels like a hard lump when touched.

After listening to the experts’ introduction, I believe that many patients with diarrhea and anal pain have already understood the causes. After understanding the causes, in order to recover as soon as possible, choose the correct treatment method as soon as possible. Through the correct treatment method, you can recover from this disease as soon as possible through treatment.