Osteodystrophy in Scottish Folds: A Congenital Health Guide

The Scottish Fold cat is renowned for its unique folded ears, which give it an owl-like appearance and make it one of the most distinctive cat breeds in the world. Despite their undeniable charm, Scottish Folds are at the centre of a significant and ongoing debate about welfare and ethical breeding practices, due to health issues linked to the gene responsible for the folded ears. If you are considering getting a Scottish Fold, understanding both the appeal and the concerns is essential. This guide covers the breed’s history, appearance, temperament, and the important health and ethical considerations.

Scottish Fold History

The Scottish Fold originated from a spontaneous mutation in a barn cat named Susie, found on a farm near Coupar Angus in Scotland in 1961. The folded ear was caused by a genetic mutation affecting cartilage development. A local shepherd, William Ross, took an interest in the cat and began a breeding programme. The breed was initially registered with the Governing Council of the Cat Fancy (GCCF) in the UK in the 1960s, but was subsequently banned from registration by the GCCF due to concerns about ear problems and cartilage abnormalities. Scottish Folds are, however, recognised by cat fancy organisations in the USA and many other countries.

Scottish Fold Appearance

The most immediately recognisable feature of the Scottish Fold is its ears, which fold forward and downward, lying flat against the head. Not all kittens in a Scottish Fold litter are born with folded ears: kittens are born with straight ears, and the fold (where it occurs) develops from around 3 to 4 weeks of age. Cats without the fold are known as ‘Straights’ or Scottish Straights.

Scottish Folds have a rounded head, a short nose, and large, round eyes. The body is medium-sized and compact, and the coat can be short or long. They come in a wide variety of colours and patterns. Their overall appearance is one of roundness and softness, which contributes significantly to their appeal.

Scottish Fold Temperament

Scottish Folds are generally described as calm, adaptable, and affectionate. They tend to bond closely with their families and are typically good with children and other pets. They are not typically highly vocal or demanding, though they do enjoy human company and do not like being left alone for extended periods.

Health and Welfare Concerns

The same gene mutation that causes the folded ears in Scottish Folds is responsible for a condition called osteochondrodysplasia, which affects cartilage and bone development throughout the body. All Scottish Fold cats — including those with straight ears who carry the Fd gene — are at risk of developing this painful condition to varying degrees. It can cause stiffness, pain, and lameness, particularly in the tail, feet, and limbs, and affected cats may show reduced mobility and signs of discomfort. The condition is progressive and there is no cure.

Because of these concerns, the GCCF in the UK does not recognise the Scottish Fold, and a number of animal welfare organisations have called for a ban on breeding cats with this mutation. Prospective buyers should research this issue thoroughly before purchasing a Scottish Fold.