PROBLEM TO BE SOLVED: To provide a tissue regeneration base material having a superior intrusion property into a cell, being unlikely to cause synechia of the tissue and being suitable for a foothold for reinforcing the fragile tissue and for promoting tissue regeneration.SOLUTION: A tissue regeneration base material is formed from a nonwoven fabric consisting of polyglycolide with an average fiber diameter of 0.9-7.0 μm. The average fiber diameter of the nonwoven fabric consisting of the polyglycolide is 0.9 μm.COPYRIGHT: (C)2013,JPO&INPIT【課題】細胞の侵入性に優れ、かつ、組織の癒着を引き起こしにくい、脆弱な組織の補強や組織再生の促進の足場に好適な組織再生基材を提供する。【解決手段】平均繊維径が0.9~7.0μmのポリグリコリドからなる不織布からなる組織再生基材。【選択図】なし