Physiological amenhorrea is the normal absence of menstruation during
pregnancy or lactation or following menopause.
is the absence of menarche in a female aged 16 years or older. Secondary
amenorrhea is the failure to menstruate for at least three consecutive
months at any time following menarche.
Most causes amenhorrea
are hypothalamic in nature and relate to a change in the release of
cyclic hormones from the brain.
Medicine views the absence of menstruation as a deficiency of the spleen
and kidneys, impeding the blood flow in the uterus, or to cold coagulation.
include blood statis and blockage of the chongmai (flush vessel) and
renmai (conception vessel), so that the normal process of properly
and adequately discharging menstrual blood does not take place.
If there is any
underlying disease, that disease should be treated first as it may
be the ben (origin or root) of abnormal menstruation.