We examined prognoses of metacarpal neck fractures. Thirty-three cases (thirty-eight digits) were followed from two months to eight years with an average length of two years and three months. From eleven-year-old to fifty-five-year-old patients (average age, 26.5 years old) were investigated in this study.In conservative group, fifty cases (79%) showed excellent results and four cases (21%) good results. In operative group, eleven cases (78%) showed excellent results and three cases (22%) good results. We could not find either fair or poor results in both groups. Excellent results were recognized in the cases with lateral angulation of less than 10° and volar angulation of less than 20°.