A cat with erect ears will not become a cat with folded ears. A cat with erect ears will have folded ears from birth. If the cat with erect ears is supplemented with good nutrition, it is possible for a cat with erect ears to become a cat with erect ears. If the cat with erect ears at home suddenly changes A cat with folded ears can only mean that the cat is a false cat with folded ears, not a cat with erect ears. When raising Fold-eared cats, attention should be paid to calcium and protein supplements, so that Fold-eared cats will be healthy.