A 2-year-old cat with folded ears does not necessarily have the disease. The age of most cats with folded ears ranges from two months to six months old. However, there are also some cases where the disease starts after 1 year old. Some cats are 6 years old. The onset of disease begins after the age of 18, and the specific onset time is not certain depending on the breeding genes. If it is a homozygous cat with folded ears, the onset will be earlier, probably before 1 year old; if it is a heterozygous cat with folded ears, it will usually develop around 3-7 years old.

Symptoms of the disease in cats with folded ears

1. The tail is thick, short, stiff, and cannot be bent: the tail will become thicker due to bony hyperplasia, and its flexibility will decrease. Swinging and painful when touched.

2. Abnormal bending, growth or swelling of the limbs: Pain during flexion makes the patient sit in a human-like posture, and joints and toes will also become deformed due to swelling of the joints.

3. Abnormal growth of toenails: The back paws are also abnormally thick. When the cat sits upright, the pillow meat of the back paws cannot touch the ground.