Anal cancer is a malignancy occurring in the anus or anal orifice: the endmost gastrointestinal tract opening. It is where solid waste exits the body and it has two sphincter muscles. Usually, this cancer is a squamous cell carcinoma of either a keratinizing or non-keratinizing nature. It is a very rare cancer type that manifests symptoms similar to hemorrhoids. This is one of the reasons why this condition is diagnosed late; some anal cancer patients mistake it for simple hemorrhoids.