What is the difference between colorectal surgery and anal surgery?

Different diagnosis and treatment scope, different treatment methods and different diseases.

1. Different scope of diagnosis and treatment: Colorectal and anal surgery is one of the main branches of general surgery, mainly including benign and malignant tumors of colorectal and anus, and anal surgery is the main method to treat tumors occurring in anus and large intestine.

2. Different treatment methods: anorectal surgery uses minimally invasive methods to treat common anorectal benign diseases, such as minimally invasive treatment of annular mixed hemorrhoids, lateral release of anal fissure, one-time radical operation of perianal abscess, etc., while anal surgery focuses on surgical treatment, and different surgical methods are adopted for different diseases, such as TEM surgery for early intestinal cancer and laparoscopic surgery for intestinal cancer.

3. Different kinds of diseases: The diseases treated by colorectal and anal surgery include hemorrhoids, anal fissure, anal atony, perianal abscess, anal papilloma and anal cryptositis, while anal surgery mainly aims at tumors and injuries occurring in anus and large intestine, among which tumor diseases include hemorrhoids, anal fistula and anal fissure.