Amenstrualperiodwhichcoversmorethantendaysisprolonged.Theflowmaycontinueinalingeringwayforfifteendaysinseverecases.Thediseaseismainlycausedbystagnationofqiandbloodorinvasionoftheuterusbyexogenouspathogenicfactors.Ineithercase,stagnantbloodblocksthecollate...[繼續(xù)閱讀]