Internal hemorrhoids are a mass of veins under the anal pad, or tortuous veins, that appear above the vicinity of the dentate line, and this area may also form a thrombus if internal bleeding occurs. However, the nerves in this area are not dermal nerves, and none of the pain sensations are obvious, but there may be swelling, or mild vague pain, or the possibility of perianal itching. The treatment is also to keep the stool soft, Ma Ying Long hemorrhoid suppositories or Tai Ning suppositories nano-anal. Thrombosed hemorrhoids, referring to thrombosed external hemorrhoids, originally there is an external hemorrhoid at the anal opening, suddenly because of internal bleeding, the formation of thrombosed external hemorrhoids, pain suddenly increased, the mass suddenly became larger, the color of the mass may be dark purple, or even edema.