PPH is not successful, the anastomosis nail is too deep, does not fall off, will cause severe stinging pain, discomfort treatment: pull out the anastomosis nail, this is a difficult job, but I have pulled out more than 3000 cases, there are some of them are done PPH surgery for several years, the patient is extremely painful, cast to the doctor, after pulling the nail, the symptoms can be eliminated. I hope that patients should be careful when doing PPH surgery and find a doctor who is good at PPH, otherwise the residual anastomosis nail will leave stinging pain, cramping, discomfort, anastomotic stenosis, defecation difficulties, and even life is difficult. Li Yongqi, Anorectal Disease Treatment Center, The First Affiliated Hospital of Henan College of Traditional Chinese Medicine