指月經(jīng)周期不規(guī)則,在兩次月經(jīng)周期之間任何時候發(fā)生子宮出血。
指月經(jīng)周期規(guī)則,但短于21天。
指月經(jīng)周期規(guī)則,但經(jīng)量過多(>80ml)或經(jīng)期延長(>7天)