Case: Mr. Wang is over 40 years old, and he has been in good health, but some time ago, he suddenly developed significant weight loss and no other uncomfortable symptoms. When he went to the hospital for examination, the doctor gave him a rectal finger examination and found a rectal mass, then after colonoscopy and pathological examination, he was diagnosed with advanced rectal cancer. Before that, he participated in the unit’s physical examination, rectal examination and stool routine + occult blood are the items he “abandoned”. “The biggest reason why many people give up on rectal exams is because they are embarrassed. In fact, rectal examination is one of the effective means to screen for rectal cancer, and abandoning the examination is irresponsible to one’s own health. If Mr. Wang did not give up the rectal examination during the medical checkup, and found the lesion earlier and started the treatment earlier, the result might not be like this. Rectal finger examination is a simple and effective cancer prevention physical examination Rectal finger examination is a simple, easy and important anal examination method and a simple and effective cancer prevention physical examination, which can be used to screen for rectal cancer, rectal polyps, internal hemorrhoids, anal fistula, anal fissure, perianal abscess and many other diseases, and also to screen for male prostate diseases (prostate cancer, prostate enlargement, etc.). The rectum of adults is usually 15 cm long and cannot be felt by rectal finger examination above 8 cm, but the rectum below 8 cm can be felt by hand. More than half of the colorectal cancer patients in China are rectal cancer. Among the patients with rectal cancer, about 70% of them are in turn low to medium rectal cancer. In other words, 70% of rectal cancers and 1/3 of colorectal cancers can be detected by rectal finger examination. If dark red blood is found on the finger sleeve or the swelling is palpated during rectal finger examination, it may indicate rectal swelling and bleeding in the rectum, and further colonoscopy is needed for clear diagnosis. Doctor’s tip: The above-mentioned different diagnostic tools have their own strengths, so I hope you will actively cooperate with the doctor for the examination, so that the doctor can consider all the examination results comprehensively and thus formulate the most reasonable treatment plan as soon as possible.