Does blood in the stool always mean hemorrhoids?

If there is blood in the stool, the first thing most people think is, oh, I guess it’s bleeding hemorrhoids. However, you may be wrong. A few days ago, there are two patients in the outpatient clinic, both blood in the stool. A is a woman, the main complaint is blood in the stool for 6 months, 3 times a day, stool are bleeding, color fresh, mucus is more, think hemorrhoids, with hemorrhoidal suppositories type of drugs have no effect, until the feeling of dizziness, fatigue, only to the clinic. Anoscopic examination of the rectum revealed extensive ulceration of the rectum with diffuse bleeding spots. He was told that enteritis was highly suspected and colonoscopy was recommended for further examination. The First Affiliated Hospital of Henan College of Traditional Chinese Medicine, Anus and Intestinal Disease Treatment Center Zhou Yangyang Mr. B is even more bizarre, persistent blood in the stool for 2 months, 4 times a day, unshaped stools, but also in time to other hospitals, diagnosed as mixed hemorrhoids, surgery is recommended. He did not want surgery and insisted on using hemorrhoidal suppositories, but to no avail, which is why he came to the clinic. Anoscopy was similar to the symptoms of the above mentioned lady, and colonoscopy resulted in a sigmoido-rectal ulcer. This reminds me of a cadre who also had persistent blood in his stool a year ago, thought he had hemorrhoids and refused to seek medical treatment. Six months later, the examination confirmed the diagnosis of rectal cancer, and in the end, although he was operated on, the timing was lost and he was not able to save his anus. Last month there was also an elementary school principal, persistent anal swelling, in my outpatient clinic fingerprinting found that the posterior rectal occupation, diagnosed as rectal cancer, but enhanced CT examination, liver has multiple metastases. I always have an opinion that when there is discomfort to seek medical attention, the emphasis is on examination, not on having to find out the problem and take medication and injections. Improving quality of life is all about prevention. What do you think?