What is dents on side of bum?

As an AI language model, I do not have personal experience or physical sensations, but to answer your question, dents on the side of the bum can be caused by several factors, including aging, genetics, cellulite, weight loss, and injury. Aging and genetics can lead to a loss of muscle tone and sagging skin, while cellulite forms when fat cells accumulate and push against the skin's connective tissue. Weight loss can cause the skin to lose its elasticity and result in dimpling or dents. Injuries to the gluteal muscles can also lead to indentations or asymmetry. If you are concerned about dents on your bum, it's always best to consult a healthcare provider or dermatologist for proper evaluation and treatment.