What are the causes of recurrent anal fissures

Anal fissure is a disease that many patients fear, not only because of the pain and other symptoms it brings, but also because it is complicated to treat and prone to recurrence. If you have an improper diet and your body becomes inflamed, anal fissures may recur. Understanding the causes of recurrence will make treatment and care easier.

1: Constipation is one of the causes of frequent anal fissures

Among the factors that cause recurrent anal fissures, constipation is the biggest culprit. According to experts, long-term retention of stool in the rectum can not only induce rectal cancer, but the accumulation of feces also affects blood circulation. When patients forcefully expel dry feces, the anus will inevitably be under greater pressure, resulting in a series of pathological changes such as cracks and swelling.

2: The second reason for frequent anal fissures is bad bowel habits

When going to the toilet, a large number of people like to squat and read books or newspapers, which causes prolonged squatting and defecation time, easily causing blood stasis in the anus and rectum and inducing diseases. Smoking while going to the toilet can buffer the brain's defecation reflex and can easily cause constipation. Some people use too much force during defecation. Regardless of whether the feeling of defecation is strong or not, they blindly and continuously struggle hard. This only adds unnecessary burden and local congestion to the rectum, anus and pelvic floor muscles, leading to the occurrence and development of anal fissures.

3. Infection is also one of the causes of frequent anal fissures

Acute and chronic anal sinusitis, anal papillitis, internal hemorrhoids and polyps are the main causes of infection. The infected pathogenic bacteria enter the anal glands through the gland opening, form abscesses in the subcutaneous tissue of the anal canal, and then form ulcers after rupture. Small superficial thrombi may cause thrombophlebitis due to infection and may also lead to anal fissures.

4: Analyzing the causes of frequent anal fissures from the perspective of human anatomy

The human body's external anal sphincter extends from the coccyx to the back of the anal canal, and is divided into two parts. It goes forward along both sides of the anal canal around the anal canal, and the two parts are connected in front of the anal canal, leaving gaps in the front and back of the anal canal. Most of the anal levator muscle is attached to the sides of the anal canal, with less in the front and back. The back and front of the anal canal are not as strong as the sides and are easily damaged. The anal canal extends downward and backward to form the anorectal angle, and the back of the anal canal is subject to greater pressure from feces. Lack of blood supply to the posterior midline of the anal canal and its low elasticity are both causes of anal fissures.