Gut

A gut prepared by collectively twisting a plurality of monofilaments in the number of from 5 to 100 made of a thermoplastic resin spun from a spinning nozzle, and maintaining said plurality of monofilaments at a temperature higher than the softening point of said resin, thereby producing a gut wherein the monofilaments in the central portion of the gut adhere to one another such that the independent shape of each monofilament cannot be distinguished and wherein the monofilaments at the periphery of the gut adhere to one another while maintaining their independent shape.