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Vaginal penetration typically doesn’t hurt, An unstretched hymen (vaginal corona) has typically been blamed for this pain, at first penetration.But if it still hurts, the reason may be:
1.Insufficient lubrication
2.Local infection
3.Local irritation
4.Tightness in vaginal entrance
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Pain is due to undersecreation of lubricating fluid in female vagina or due to its hymen.
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