The "sweater curse" or "curse of the love sweater" is a term used by knitters and crocheters to describe the belief that if a knitter or crocheter gives a hand-knit sweater to a significant other, it will lead to the recipient breaking up with the knitter.[1] In an alternative formulation, the relationship will end before the sweater is even completed.[2][3] The belief is widely discussed in knitting publications, and some knitters claim to have experienced it.[4][5][6] In a 2005 poll, 15% of active knitters said that they had experienced the sweater curse firsthand, and 41% considered it a possibility that should be taken seriously.[7]
Despite its name, the "sweater curse" is treated in knitting literature not as a superstition governed by paranormal forces, but rather as a real-world pitfall of knitting that has rational explanations.[4][8] Several plausible mechanisms for the sweater curse have been proposed, but it has not been studied systematically.