What are some possible post-operative complications of spaying?

Post-operative complications of spaying include vomiting, diarrhea, discharge or bleeding from the incision, difficulty urinating, labored breathing, decreased appetite, lethargy and infection, according to Operation PETS. These complications require immediate medical attention.

The most common complications arise from lack of owner compliance with post-surgical instructions, states Steel Valley Spay Neuter Clinic. During recovery, owners must restrict their pets' activities and inspect incision sites daily for signs of persistent redness and swelling. Owners should prevent animals from licking or scratching incision sites, as this might open the wounds and cause infection. Protective pet collars, which are available at most pet stores, help prevent damage to incisions.