PROBLEM TO BE SOLVED: To provide a method for directly obtaining a pluripotent stem cell from the umbilical cord or adipose tissue of a living body, and a pluripotent stem cell obtained by the method.SOLUTION: Provided is a SSEA-3 positive pluripotent stem cell that can be isolated from the umbilical cord or adipose tissue of a living body.【課題】生体の臍帯又は脂肪組織から多能性幹細胞を直接得る方法の提供及びその方法により得られた多能性幹細胞の提供。【解決手段】生体の臍帯又は脂肪組織から単離できるSSEA-3陽性の多能性幹細胞。【選択図】なし