Amenstrualperiodwhichcoversmorethantendaysisprolonged.Theflowmaycontinueinalingeringwayforfifteendaysinseverecases.Thediseaseismainlycausedbystagnationofqiandbloodorinvasionoftheuterusbyexogenouspathogenicfactors.Ineithercase,stagnantbloodblocksthecollate...[继续阅读]