INFO:
缩宫素具有使子宫收缩的作用，子宫一旦开始收缩，肌纤维细胞体积缩小同时可缩短间距，给产妇中枢神经系统传导疼痛信号，从而使产妇主观感觉强烈。宫缩痛在整个痛觉体系中占据较高位置，疼痛强度和级别较高。通常产妇孕期时可通过静脉点滴缩宫素催产，进

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打缩宫素为什么那么疼

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