Described are fusion proteins of GLP-2 with an Fc region of immunoglobulin. The GLP- 2 and Fc regions are separated by a linker comprised of amino acids. The fusion proteins persist and remain active in the body for longer periods of time than GLP-2 itself. Methods are disclosed of using the fusion proteins to treat and prevent enterocutaneous fistulae, radiation damage to the gastrointestinal tract, obstructive jaundice, and short bowel syndrome.