7 to 14 days. For male dogs, the sterilized wound is smaller, the testicles need to be removed, and the number of stitches is less, so the recovery is faster, and the stitches can be removed 7- 14 days after operation. For the bitch, the sterilized wound is large, because the uterus and ovary need to be removed, so the suture is needed after operation, and the suture can be removed 7 ~ 14 days after operation. During the recovery period, keep the dog's wound dry and clean to avoid infection. At the same time, we should pay attention to providing adequate nutrition and care for dogs, which will help promote the healing and recovery of wounds.