The typical timeframe for removing stitches after a female cat's spaying surgery (ovariohysterectomy) is around 7 to 10 days. If the incision site is healing well, the stitches can generally be removed within this 7 to 10-day period post-surgery.

Proper post-operative care is crucial for a smooth recovery. This includes keeping the incision site dry and clean, applying a wound-healing spray daily, having your cat wear an Elizabethan collar (also known as a cone), and avoiding bathing or outdoor activities, as well as strenuous exercise and stress. After the stitches are removed, it's important to continue having your cat wear the Elizabethan collar for another 3 days or so. Once the incision is completely healed, then bathing can be permitted, and the cone can be removed.
When Can a Cat Have the Cone Removed After Stitches are Out?
Generally, the Elizabethan collar can be removed about two days after the stitches are taken out. During a spaying surgery, the ovaries and uterus are removed. The incision for this procedure is typically small, and often requires only one or two stitches to close. The inner abdominal wall, muscle layers, and the external skin layer typically heal completely within seven days. After suture removal, there are small puncture sites (where the stitches were) that usually close up completely within about two days. The purpose of the Elizabethan collar is to prevent your cat from licking at the healing incision while these tiny suture sites heal. Licking could introduce bacteria from the mouth into the wound, increasing the risk of infection.