1. The inverted shape (or "v" shape) is common in women with lower estrogen levels.
2. The heart (or pear) shape has significant fat distribution around the upper thighs.
3. The round shape has fat distribution all around the buttocks (think "bubble butt").
4. Finally, the square or "H" shape has fat distributed evenly up to the love handles.
All fat isn't bad, and the way your body distributes fat is extremely important. Even fat distribution can also lower your risk of conditions like diabetes.
However, too much fat in your posterior could lead to hemorrhoids and other issues. So make sure your living an active and healthy lifestyle to have the perfectly sculpted butt shape!