Early in the 19th century, medical personnel in the military were still required to be suited up. However, when performing surgery in the heat of battle, these doctors and surgeons would routinely get their jackets stained with the blood of their patients. To avoid having a jacket ruined with these nasty stains, the tailors on Savile Row introduced functional buttons on the cuffs of a jacket's sleeve. Theyse were named the surgeon cuff. This allowed these battlefield doctors to easily roll up their sleeves and avert having to walk around with blood-soaked sleeves.