患者,女,56岁。4月前患者自觉排便及劳累后有下坠感,后又发现粪便表面常有少量鲜血,当地医院诊断为“痔核”,行割痔治疗。术后血便,下坠逐渐加重。发病来无腹泻、便秘及脓性便等,既往健康。体检:体温37℃,脉搏80次/分,血压 Patient, female, 56 years old. Before 4 months, the patient felt conscious of bowel movements and had a sense of falling after exertion. Later, he found that there was often a small amount of blood on the surface of the stool. The local hospital diagnosed him as a “nucleus nucleus” and treated him with cutting lice. After bloody stools, the fall gradually increased. No diarrhea, constipation, purulent stools, etc. have been reported since the onset of illness. Physical examination: body temperature 37°C, pulse 80 beats/minute, blood pressure