In more than 30 years of clinical work, we often encounter some special cases that are shocking and painful. Now, we will share with you the painful lessons caused by some cases of rectal foreign bodies, hoping that similar things will not happen again. Rectal foreign bodies are divided into endogenous foreign bodies: such as persistent stones, fecal stones and gallstones in the digestive tract, which account for a relatively small percentage of foreign bodies. Exogenous foreign body: entering through the mouth: such as swallowed nails, folding scissors, toothbrushes, blades, dentures, rings, necklaces and other items. Generally, if the diameter is less than 5 cm, it can be excreted naturally with feces. Individuals need to be removed with the help of colonoscopy, anoscopy or vascular forceps. Anal entry: the most common, for various reasons, related to mental abnormalities, children or abnormal sexual orientation. Most foreign bodies that enter through the anus can be removed on their own. If the foreign body is large or unusually shaped, combined with pain or spasm of the anal sphincter due to inflammation, the foreign body is difficult to expel. I remember 20 years ago, when I was an attending physician, I met a male patient in the emergency room who had a gym ball inserted into his anus as a joke by a colleague and could not expel it for 8 hours, accompanied by pain and bleeding. After a simple rectal finger examination and abdominal X-ray, the diagnosis was clear. The key is the treatment and its difficulties, because the shape, texture and diameter of the marble fitness ball is large, using a variety of vascular forceps can not be clamped, and finally used wire folded into a U-shaped unconventional method to remove. For foreign bodies that are particularly large and brittle in texture can also be crushed and removed in pieces. In later surgical career, intermittently encountered with toothbrushes, keys, prosthesis, glass bottles and other rectal foreign bodies, it is difficult to remove directly, then we have to take out under anesthesia with the assistance of colonoscopy, anoscopy, good anesthesia and anal sphincter relaxation to ensure the removal of foreign bodies, remember one case of patients removed Philips bulbs. This patient is not as lucky as the previous ones, because of the round shape and curvature of both ends, the foreign body moved up to the sigmoid colon and could not be removed directly or endoscopically, so he had to undergo emergency open surgery and cut open the intestinal canal to remove the prosthesis, which turned out to be a massage stick! Through the above cases, we should know that most of the rectal foreign bodies are entered by the anus, and once entered it is more difficult to remove, but also to bring great physical and mental, physical pain to the patient, and in serious cases can also be life-threatening peritonitis caused by intestinal perforation. There are basically three ways to remove a rectal foreign body: direct removal, endoscopic-assisted removal, and surgical open or laparoscopic removal of the intestinal canal. Either way there is obvious pain and heartbreak! Don’t just stick something in your anus, you can’t eat it, the ultimate victim is still the patient. I hope these living examples can play a warning role.