American plastic surgeon Matthew Schulman created the ‘ultimate’ guide to to female butt-types. Schulman is a specialist in buttock lifting, so he should know what he is talking about. According to Schulman, female ‘rear-ends’ can be categorised into five types: Square, V-shaped, A-shaped, Round or inverse heart shape. Schulman says it is very important for women to know which category they fall into, as it aids them in picking the right lingerie that flatters their appearance by brining out their strong points.

‘There is an ideal underwear for every ass’, Schulman tells Cosmopolitan.com. He explains that the butt shape is a result of pelvic bone and hip position, the size and shape of the buttock muscles, fat distribution, and the way muscles are connected with the thigh bone. The doctor gave his bikini suggestions for each type of buttocks:

For the square types he recommends a shorts-type bottom suit; for the V-type a better choice is a more classic bottom bikini; for the A-type females he suggests a ‘hipster’ style bottom wear is more appropriate; the round shape is best to go for a shim suit with more fabric to cover the rear end; while the inverse heart types can wear virtually any thing.