Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to treat mammary disease in intact female dogs [title] Check the mammary glands in your female dog. [step] Mammary gland tumors can occur in any of the mammary glands in your dog. It can also occur at any time, before or after they have given birth or while they are lactating.

Ending1: Check your female dog often for any irregularities. [substeps] Most often, mammary tumors occur in the back glands, nearest the hind legs. Ending2: Infected mammary glands may have sores or lesions on them. [substeps] Nodule testes may have sores and lesions on them. Ending3: Keep your female dog's mammary glands in a well ventilated area and remove any intact tissue before taking the mammary glands out. This will help reduce swelling and pain around the mammary glands and thus prevent infection. Ending4: Monitor the mammary glands for changes in size or appearance. [title] Examine your dog's mammary glands with your hands or a microscope.

Answer format: ending1/ending2/ending3/ending4