I think you are talking about cankles yes?
The first misconception of cankles is that it has to do with leg fat, and being overweight but this isn't the only cause.
My sister always had thick calves and could never wear knee-high boots. But I think that's just genetics. If you didn't have them from the day you were born then that would be a concern.
clear distinction between the calf and ankles is affiliated with several health issues. Conditions such as diabetes, hypertension, cardiovascular risks, and even lymphedema can lead to cankles, Dr. Kathya Zinszer, a physician at Temple University's School of Podiatric Medicine, told CNN