Sterilization and Pet Health: Why Dogs and Cats May Gain Weight After Surgery

Sterilization alters the hormonal balance of pets and can slow their metabolism, sometimes causing weight gain even if the animal continues to eat the same amount of food. At the same time, the procedure significantly reduces the risk of serious diseases and improves the quality of life for pets. This was explained in a conversation with Pravda.Ru by veterinarian Evgeny Tsyplenkov. Hormonal Changes After Sterilization The specialist explained that sterilization or castration changes an animal's hormonal background, which can influence metabolic processes and overall activity levels. According to the veterinarian, weight gain is observed most often in male animals — particularly male cats and dogs.