There are several cases of hard particles inside the anus: 1. inflammatory polyps inside the anus. 2. thrombosed hemorrhoids formed after bleeding hemorrhoids, and when you touch them with your hand, you will feel a very hard lump. 3. hard lumps at the anus caused by scar tissue after surgery, because a sclerosing agent is injected during surgery, and when you touch it with your hand six months after the sclerosing agent is injected, you will find a very hard lump. 4, benign and malignant tumors and tuberculosis at the anus, early diagnosis should be followed by timely selection of surgery for lesion removal, and pathological examination is also needed after surgery, because if it is a polyp repeatedly stimulated by chronic inflammation, it is easy to develop atypical hyperplasia or even cancer. In general, you must pay attention to the hygiene around the anus, eat more coarse fiber food, and develop the habit of defecating on time. To sum up, if hard particles appear in the anus, you must go to the hospital for examination in time.