The bum, popularly known as buttocks, can be viewed anatomically as the two rounded or, in some cases, square-shaped portions of the body positioned posteriorly.
The bum or buttocks comprises a layer of fat that is superimposed on the gluteus maximus and gluteus muscles

The largest of each buttock's three thigh-moving muscles is the Gluteus maximus.
There are various types of bum shapes, some of which are- round bum (also known as a circle or O shaped bum), upside-down heart bum (also known as pear or A-shaped bum), inverted or V-shaped bum, and the square-shaped bum- which is the reason for this.

The Square Shaped Bum
This type of bum is also known as an H-shaped or Sponge Bob-shaped bum. It's the most prevalent butt shape, especially among women in their twenties and thirties. From the waist to the hips, square bums are the same size. Square bums are commonly referred to as "masculine-looking."
Patients with high hip bones or "love handles" with a lot of fat are more likely to have square buttocks. Therefore, the hip bones and the outer thighs are not tapered to the waist in a smooth curve. The end result is likely to be a flat square bottom.
A flat buttock can also be caused by a lack of gluteal muscular definition. Square buttocks are extremely tough to alter via exercise and proper nutrition.
Taller, more prominent hip bones (perhaps even hip dips) or fat distribution in the 'love handle' area give this shape. The overall result is that the butt appears square formed, with a straight up-and-down right below your waist rather than a smooth slope tapering to the waist.

Now, what determines the shape of your bum?
• The configuration of your pelvic bones
• Your fat distribution, which is typically hereditary; and
• The location of the glute muscles' attachment to the pelvic bones.

Your skeletal system provides the basic framework for your body shape, and the distribution of fat and muscle on top of your skeleton determines the overall shape you have.. Your skeleton is the one element that can't be modified, and it's this simple fact that supports the shape of your body and muscles. The biggest factor that determines the form of your buttocks is your pelvis, followed by your fat distribution, which is mostly dictated by genetics.

The following components can be combined in a variety of ways:
• The Ilium's length and width,
• The femoral neck's length and angle,
• The ilium-greater trochanter distance is the vertical distance between the Ilium and the larger trochanter.
• The greater trochanter's size
Also, the distance between the Ilium and the Hip socket, which can cause hip dips.

The love handles are where the majority of the fat is distributed, emphasizing the square appearance.

Most people's glutes are undeveloped, muscle does not add much to butt form for those who do not practice specific glute exercises.

If your buttocks are square, fat is distributed around the upper region of the glutes, while the lower part is heavier. As a result, glutes must be strengthened, and a low-fat diet must be considered. This form can also indicate that you are resilient to stress and have a healthy immune system.

Every great dream begins with a dreamer.

Harriet Tubman