Around 2 months ago, I removed a large mammary tumour and many small ones nearby. I advised spaying one month after this surgery. The owner did not come. The owner wanted to spay the dog 2 months after removal of mammary tumours. But today, the dog's lower body it itchy, inflamed and has pimples or pustules. "I don't advise spaying as the surrounding skin is badly infected and inflamed", I said. "The bacteria may enter the abdomen through spaying. In addition, the reddish brown discharge from the lower private area means that your dog has pyometra (infection of the womb). A course of antibiotics is necessary." Spay is postponed as skin bacteria from the surrounding area may enter the incision and cause septicaemia.