Buried stitches, or dissolvable stitches, require less attention than do skin stitches because they are subdermal, or beneath the skin. Particularly in feral cats, these types of stitches are preferred because the cat can be released without returning to the veterinarian for a checkup. Caring for the dissolvable stitches requires monitoring the wound and making sure it is healing properly. You may also have to keep your pet from licking the area, playing too hard, or dirtying the wound.
Check the incision area every day for draining or swelling. Buried sutures (dissolvable stitches) should not allow bleeding or drainage of any sort. Pus, either yellowish or greenish, is a sign of infection and should be evaluated by a veterinarian. Also make sure the stitches are not breaking down--evidenced by the wound opening before healing.
Look at the wound and evaluate whether it is red. After 3 to 5 days, the wound should no longer look red or painful.
Try to keep the area clean of debris and to keep the pet from licking the wound and introducing bacteria. Even though the sutures are buried, try not to let her lick and bite at the area. This may be difficult, as your pet will want to clean herself. If she doesn't stop licking the wounds, purchase an Elizabethan collar to put around her head and neck.
Try to keep your pet calm. It is OK if she plays a bit, but don't let her get overexcited and pull a stitch or injure her incision.