Anyway, because my pelvis is relatively large, my belt will always look bulging and not fat.

I suggest you buy high-waisted trousers or wear loose-fitting ones on your back. Anyway, we should foster strengths and avoid weaknesses.

The following is an encyclopedia introduction of pelvis:

Pelvic bone, also known as pelvis in Chinese medicine, is common in Hong Kong, Macao and Taiwan, that is, pelvis. From the place where we wear the belt to the thigh bone, it is called pelvis, which is a whole and shaped like a basin. The child sleeps in this cradle, and the lower mouth of the pelvis is where the child comes out. Of course, the older a child is, the easier it is to give birth. However, people with large pelvis have fat buttocks, which is one of the most important characteristics of women's sexiness.