Why are the back of my thighs so fat? September 15, 2022December 28, 2023BRA 0 The main culprit behind weight gain in your thighs is estrogen. This hormone drives the increase in fat cells in females, causing deposits to form most commonly around the buttocks and thighs.Related Posts:Strengthen Your Back Muscles & Shape Your Back -…Goodbye Back Flab, Hello Sleek Back: The Best Back FatNo More Unwanted Back Bulge: Proven Strategies for…