Does anyone know how to do anal fissure examination?

1. Anal examination: Gently separate the patient's buttocks with both thumbs to observe whether there is prolapse, external hemorrhoids, fistula, abscess, anal fissure, etc. In and around the anus.

2. Digital rectal examination: also known as digital anal examination, the examiner puts gloves on his right hand or finger cuff on his right index finger, applies lubricating oil, puts the front end of his right index finger on the anal orifice, and gently inserts it into the anal orifice after the patient gets used to it. First test the tightness of the anal sphincter, and then check the anorectal periphery in turn, paying attention to whether there is tenderness, lump, fluctuation, stenosis, etc. Around the intestinal wall. On the anterior wall of rectum, men can touch the prostate and women can touch the cervix. When the finger is pulled out, observe whether there is blood or mucus on the glove.

3. Anoscopy: Apply lubricating oil to the anoscope, slowly insert it into the anus, pull out the core, turn on the light, and observe the color of rectal mucosa, rectal flap, ulcer, polyp, tumor, foreign body, etc. Slowly pull out the anoscope and observe whether there are lesions near the rectum and tooth line, such as fistula and hemorrhoids.