Mixed hemorrhoids are a more serious disease and the hazards are mainly as follows: 1. causing anal dysfunction: if the disease is not cured for a long time, it will lead to defecation difficulties and anal incontinence; 2. infection of mixed hemorrhoids: it will lead to serious sepsis, toxaemia and septicaemia; 3. because of the close anatomical position of the anus and vagina, bleeding or inflammation of the hemorrhoids will lead to gynaecological inflammation; 4. leading to phytodystrophy: causing pain in the lower back and thighs, etc.; 5. a large amount of mucus outflow will cause itching of the anal skin, and in serious cases, eczema of the skin; 6. because the symptoms of rectal cancer are closer to those of mixed hemorrhoids, it will cover up the diagnosis of rectal cancer and may lose the time for treatment.