Hi there, Thank you for your thoughtful question. I completely understand how a localized pocket of fat, especially on the chin, can feel disproportionately noticeable, even when you're lean and fit elsewhere. What you’re describing sounds like isolated submental or premental fat, especially since you mentioned it's soft, mobile, and not part of the underlying bone structure. This is not uncommon, even in individuals with low body fat percentages. Chin Liposuction: A Consideration Chin liposuction can be an effective and targeted solution in cases like yours. It’s designed to permanently remove localized fat deposits and can improve chin projection and jawline definition with minimal scarring. Since you're already lean and healthy, you're likely a good candidate. That said, here are a few things to consider: Skin elasticity is key; at your age and body composition, your skin likely has good recoil, which helps with a smooth post-op result. Non-surgical options such as Kybella (deoxycholic acid injections) may also help in some cases, though they typically require multiple sessions and may be less predictable. A consultation with a facial plastic surgeon or board-certified dermatologist would be the best next step to assess if the fullness is purely fat or a combination of other factors, like muscle prominence or soft tissue structure. You're not alone in how you feel, and there are very real and manageable options to help you feel more confident in your appearance. I’d be happy to help guide you further if needed. Warm regards, Dr. Anna Chacon