The main symptoms of hemorrhoids are blood in stool, pain, prolapse, increased local secretions and difficulty in defecation, etc. The most important symptoms are blood in stool and prolapse. Repeated and repeated bleeding during bowel movements will cause the body to lose a large amount of iron, causing iron deficiency anemia. Hemorrhoids gradually enlarged, stool internal hemorrhoids repeatedly prolapse, prolapse in the anus outside the internal hemorrhoids by the sphincter muscle contraction, venous reflux is blocked, while the arterial blood is still continuously input, so that the hemorrhoids nucleus volume continues to increase until the arterial blood vessels are pressed closed, thrombosis, the emergence of hemorrhoids nucleus hardness, pain, and hard to send back to the anus, resulting in internal hemorrhoids inlaid. When the hemorrhoidal nucleus can not be sent back, known as embedded hemorrhoids. Prolonged hemorrhoid embedded, there will be necrosis, serious cases will lead to septicemia. In addition, there will be different degrees of infection after the hemorrhoids are embedded.