Whether you can have a thin or thick ankle there is surely the right shoe for you to wear. If you have thick ankles there are some points to consider.
Firstly you should think about the scale rather than straps, heels and soles in order to balance your ankle.
Secondly and similarly with clothes horizontal lines give broader impression. So, stay away from horizontals. Diagonal shoes especially the ones more vertical in appearance can make your foot look thinner.
Thirdly, the concept of ‘vamp’ is very important. It’s about how far the shoes come up and covers your foot. A low vamp make your legs look longer and it draw attention away from your ankles. Also blending your shoes to pants and hosiery can give the impression of the most slimming appearance. Keep in mind that knee high boots are low vamp shoes as well. Other shoes which suit thick ankles are ballerina shoes, wedge heels, nude footwears and the ones with diagonal straps and thicker heels.
As another point, if you wear a pump, make sure the heel comes straight down from the base of your shoes. Because this will give your ankle some shape. Also any details in the front of the shoes you pick will draw the attention from your ankles.
Keep in mind that clogs and mules are the best friends of thick ankles as well. However, most importantly while choosing right shoes pick the ones which show thick ankles slimmer and also the ones which you wear with confidence.