Putter's Malady, also known as the yips, is a condition in which a golfer experiences an involuntary jerking of the wrists during the putting stroke. It is believed to be caused by a combination of physical and psychological factors, such as tension, fatigue, and anxiety. The term 'yips' was first used in the early 1900s to describe this condition. It is a common problem among professional golfers, and can have a significant impact on their performance.