An 'animal cruelty prevention society' has a big issue with Taylor Swift's cats.

Ask any Swifty and they’ll tell you, to love Taylor Swift is to love her two Scottish fold cats named Olivia Benson and Meredith Grey.

That is, of course, unless you’re the Scottish Society for the Prevention of Cruelty to Animals.

Taking issue with the 27-year-old's frankly downright adorable and ultra-Instagram worthy cats, the SSPCA's chief superintendent told The Times it is common for Swift's particular breed of cat "to suffer from serious health problems."

They added, “The cartilage and bones do not develop properly, which leads to arthritis and other painful joint diseases that can cause reluctance to move, abnormal posture and gait, lameness and short, misshapen limbs."

Retailing for around AU$1000 per kitten, the major problem with Scottish fold cats appears to be that, like a number of other popular cats and dogs, their health conditions are the result of decades of inbreeding.

And while it's not currently illegal to breed Scottish folds, the SSPCA did say they "welcome any change to legislation to prevent the breeding and sale of Scottish fold cats.”

The silver lining to this horrible dark cloud, at least, is that should Olivia Benson (named after the Law & Order heroine) and Meredith Grey (named after Grey's Anatomy's namesake) ever fall ill or suffer from any medical conditions, they're likely to receive the best veterinary care money and Tay Tay can buy.

Fingers crossed for a happy and healthy nine lives for the pair, though.