General prevention methods of anal diseases: 1, do not eat or eat less spicy stimulating food: 2, avoid prolonged in a position, such as sedentary or standing; 3, do not read books, newspapers, smoking during defecation, defecation time control within 3-5min; 4, active prevention and control of constipation, such as meat and vegetables, not partial food, eat more fresh vegetables, bananas, pears, carrots, honey, etc.; 5, keep the anus clean; 6, sexual intercourse should not be excessive; often do anal exercise.