Hemorrhoids can be classified into zero to four grades depending on the type and severity of pain. The specific situation is divided into the following categories: first, internal hemorrhoids in the case of returnable anus without impaction and rupture, no significant pain, pain level is zero. Second, internal hemorrhoids have slight pain when the surface is broken or irritated by stool, but can be returned to the anus, and the pain level is one. Third, thrombosed external hemorrhoids, due to the formation of thrombus, resulting in local blockage of ischemia, pain is more obvious, the pain can not be controlled without medication, persistent episodes, due to individual sensitivity to pain slightly different, belong to secondary or tertiary pain. Fourth, internal hemorrhoids are more serious, prolapsing out of the anus, unable to return to the anus, forming embedded hemorrhoids, local ischemia or even necrosis, pain is severe and unbearable, strangulation-like pain, pain level three to four, some people can be controlled with medication belongs to three; if longer, too sensitive to pain, and can not be controlled with medication, and even blood pressure and pulse changes belong to the fourth level of pain.