Yes, it is normal to get pimples on your buttocks. Just like the rest of your skin, the pores in your butt can become clogged with oil and sweat, which leads to breakouts. If you're noticing more pimples than usual in this area, it could be due to tight clothing that doesn't allow your skin to breathe, sweating during workouts, or using too harsh of cleansing products. To help prevent butt acne, make sure you're wearing loose-fitting clothes when possible, washing immediately after sweating, and using a gentle cleanser on the area.