病名。亦名月經(jīng)澀少、月經(jīng)滯澀、經(jīng)水否澀、經(jīng)水澀少、經(jīng)乍來(lái)乍少等。指月經(jīng)周期雖準(zhǔn)，但血量少于正常，或經(jīng)行時(shí)間過(guò)短，量亦過(guò)少，甚至點(diǎn)滴一、二日即凈。有血虛月經(jīng)過(guò)少、血寒月經(jīng)過(guò)少、血瘀月經(jīng)過(guò)少、腎虛月經(jīng)過(guò)少或痰濕月經(jīng)過(guò)少等。詳各條。