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, external hemorrhoid edema, anorectal cancer and anal foreign body injury, after anorectal surgery. The nature, severity and accompanying symptoms of pain vary.
(1) The pain caused by anal fissures is periodic. It usually occurs during or after stool, and is mainly caused by stool 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 relieved. In addition, due to the stimulation of defecation, the internal sphincter may show persistent 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. In addition to pain, anal fissures are often accompanied by symptoms such as bleeding and constipation.
(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 be aggravated and go to the buttocks and back of the thigh. Department of 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.
(3) Thrombotic external hemorrhoids: mild cases have foreign body sensation, mostly accompanied by swelling and 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) Paraanal abscess is dominated by swelling and pain, 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. What is different from other parts is that more than 90% of paraanal abscesses can form anal fistula, and the course of the disease is longer.
(5) Incarceration of internal hemorrhoids is mainly caused by swelling pain and burning pain, mostly due to hemorrhoids varicose veins, blood network damage, thrombosis, which results in restricted circulation of the tissues and prolapses outside the anus, unable to be received. It is more common 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 mainly caused by falling swelling and burning pain. It 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, the anus may swell and have dull pain. Common symptoms such as changes in bowel habits, pus and blood in the stool, abdominal distension, abdominal pain, weight loss and other symptoms. If the patient has the above symptoms, it should be diagnosed and treated by a specialist in time.
(8) Anal foreign body injury is mostly caused by residual foreign body from trauma or improper diet, fish bones and bone pieces embedded in the anal canal and rectum. Therefore, please ask a doctor to check carefully and remove the foreign body. The pain can be relieved. If the residence time is too long, it can cause local infection.
(9) Anorectal neurosis Pudendal neurosis, rectal inflammation, etc. can cause anorectal pain, and clinical attention is often needed to differentiate.
The above (1), (2), (5), (6) are mostly pain during defecation; (3), (4), (7), (8) are mostly persistent pain; (9) are intermittent pain . Anal pain is one of the most common symptoms, so it is necessary to make a clear diagnosis, look for the cause of the disease, and examine the cause. Otherwise, the pain will not be relieved and treatment will be delayed.