Anal pain mainly refers to a symptom of pain in the anus and around the anus and rectum, which is shared by many anorectal diseases. Such as anal fissure, anal sinusitis, thrombotic external hemorrhoids, paraanal abscess, internal hemorrhoid incarceration, after anorectal surgery, etc. The nature, severity and accompanying symptoms of pain vary. Here are some common diseases that cause anal pain:
1. The pain caused by anal fissures is periodic. It usually occurs during or after stool, and is mainly caused by fecal stimulation and expansion of the ulcer. The pain is paroxysmal burning or knife-cutting pain, which can last for several minutes; after the stool passes, the pain is reduced. In addition, due to the stimulation of defecation, the internal sphincter may show continuous spasm, causing severe and long-lasting pain in the ulcer split; it often lasts for several hours, and the patient is restless and very painful; in severe cases, the pain may be more than 24 hours. .
2. Anal sinusitis is generally slightly painful and swelling in the anus, burning pain in the anus due to feces compressing the inflamed anal sinus during defecation. If the sphincter contracture due to stimulation, the pain will increase and go to the buttocks and back of the thigh. radiation. It is often accompanied by a small amount of purulent or mucous secretions overflowing and smelly, which can cause perianal dampness, itching and other discomfort over time.
Third, thrombotic external hemorrhoids: mild cases have foreign body sensation, mostly accompanied by pain. Due to the damage of the perianal vein, the blood clot coagulated into a thrombus, and a blue-violet round hard nodule appeared under the skin of the anus, usually at 3 o'clock and 9 o'clock in the lithotomy site.
4. Perianal abscess: Pain and swelling are the main symptoms, and the pain when pus is pus-like. Due to the different factors such as the location of the paraanal abscess, the size of the abscess, the pathogenic bacteria and the patient's body resistance, the symptoms and signs that appear are also different. Common subcutaneous abscesses around the anus, sciatic rectal fossa abscess, pelvic rectal fossa abscess, retrorectal abscess, and tuberculous abscess. In addition to the main symptoms of these abscesses are different, generally half of them have fever, chills, constipation, and poor urination.
5. Incarceration of internal hemorrhoids Mainly swelling pain and burning pain, mostly due to hemorrhoids varicose veins, blood collateral damage, thrombosis, resulting in restricted circulation of tissues and prolapse outside the anus, unable to be received, it is more likely to occur in hemorrhoids in stage II and III. Therefore, it is necessary to receive treatment or surgical treatment as soon as possible, otherwise the surface mucosa is very easy to bleed, break, and even become infected.
6. The edema of external hemorrhoids is dominated by falling swelling and burning pain, which is manifested as a localized mass on the edge of the anus, which is hard, smooth, bright and tender. Mostly due to fatigue, struggling to defecate or surgical stimulation.
7. Rectal cancer: There is no pain in the early stage. Later, due to the enlargement and ulceration of the lumps, there may be swelling and dull pain in the anus. It is common to have changes in bowel habits, pus and blood in the stool, abdominal distension, abdominal pain, weight loss and other symptoms.
8. Anal foreign body injury is mostly caused by residual foreign body from trauma or improper diet, fish bones, bone pieces embedded in the anal canal and rectum.