Causes of a Cat Putting on a Lot of Weight After Getting Spayed


If you've recently spayed your cat and she's putting on weight, there could be a connection. Spaying causes changes in metabolism that can affect weight. The procedure also can influence your cat's activity level, which in turn can cause weight gain. Spayed cats don't roam around as much as their intact counterparts, for example.

Metabolism and Activity Changes

Spaying, like neutering, can slow your cat's metabolism. This shift can encourage body fat to spread to other areas of your pet's physique, too, particularly the stomach. If your cat suddenly has a big belly, the change in her metabolism post-spaying could be to blame.

Weight gain in cats after spaying is sometimes the result of changes in physical activity, too. Intact female cats in heat are often inclined to wander around in search of mating partners. Once cats are spayed, they no longer have these sexual urges and therefore don't get as much exercise. This can lead to noticeable weight gain even if your cat isn't consuming more calories than before.

Changes in Caloric Requirements

Spayed cats don't need to consume as many calories as intact cats thanks to their newly reduced metabolic rates. Spayed cats often need as much as 25 percent fewer calories than intact felines.

Veterinary Guidance

Discuss establishing a proper and well-rounded diet with the guidance of your veterinarian. Your vet can help you determine appropriate portion sizes and foods. Regular exercise is also crucial. Help your cat get the exercise she needs by playing with her regularly.

If your cat has gained weight after spaying, consult your veterinarian regarding putting together a healthy and sensible weight loss plan for her. Since rapid weight loss can be hazardous, it's important to ensure that your cat loses weight gradually.


  • Don't assume that your cat's excessive weight gain is an effect of spaying. Significant weight gain in cats can denote medical conditions such as hypothyroidism. Schedule an appointment with the veterinarian to make sure your cat's weight gain isn't related to illness.

    Significant weight gain can signify depression and anxiety in cats. If your home lacks a stimulating home environment, eating food could become one of your pet's main enjoyments in life. If this is the case, it's up to you to enrich your cat's living space with fun things such as interactive toys, a cat tree and a window perch that lets her gaze at the world outside.

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