Hi, thank you for your question regarding the migration of the crescent thigh scar after a thigh lift or thigh reduction. One of the known risks and complications of the crescent thigh lift is scar migration. However, in experienced hands, crescent thigh scar migration is VERY RARE. The key to the crescent thigh lift/ thigh reduction is the anchoring of the inner thigh flap. I have written papers and presented on this very topic. Personally, I anchor the inner thigh with multiple interrupted permanent sutures to the pelvic periosteum. The pelvic periosteum is that thick layer of tissue just above the pelvic bone. The pelvic periosteum does not move and withstands the forces of exertion and gravity. My crescent thigh lift patients wear their thigh garments for 6 weeks and are not allowed to exercise for about 2 months. I specialize in thigh lifts. I hope that I have answered your questions regarding the thigh reduction. If you have any more questions regarding the thigh lift, thigh reduction, vertical thigh lift, medial thigh lift, spiral thigh lift, crescent thigh lift, or thigh lipo, please contact my office. Please seek an experienced, board-certified plastic surgeon with significant experience performing thigh lifts. Do your research. Make sure your chosen plastic surgeon has performed at least 100 thigh lifts. Make sure they have the before and after pictures to prove it. Carefully examine their before and after pictures and check their reviews on RealSelf. Sincerely, Dr. Katzen. (“Verified” Plastic Surgeon, President of the American Society of Bariatric Surgeon, Certified by the American Board of Plastic Surgery, Fellow of the International Society of Aesthetic Plastic Surgery, American College of Surgery, International College of Surgery, and American Board of Metabolic and Bariatric Surgery, and member of the American Society of Plastic Surgery, American Academy of Cosmetic Surgery and RealSelf Hall of Fame.)