1, hemostatic forceps clip: It is implemented within 24 hours after birth, with the advantages of good management, less bleeding and quick recovery from infection. The disadvantage is that it is not good for GG who is physically weak.

2, rubber tendon: 3-4 days ago, the advantage is easy to operate+no blood, the disadvantage is that the cycle is long, easy to infect, and the fracture is easy to form a pointed shape for a long time.

3, cut off: 3- 10 days, GG has the advantages of easy control, flexible time, easy to master the length, neat incision, rapid recovery from infection, complicated operation and less bleeding (purely based on personal experience and GG system).

4, surgery: dogs over two weeks can not be operated, can only wait for more than three months to go to the hospital for surgical resection.