Do you know anyone who have menses once every three months, or even once a year?
This is considered amenorrhea (absence of menstruation) in Western medicine. However, Daoists believe that this may be due to their extraordinary ability to store Jing, or prenatal essence.
If a person has no significant diseases, neither their Qi or Blood is depleted or damaged. This is because they have extraordinary constitutions, which leads to menstruation happens once every season/year. According to the famous physician Fu Qingzhu (1607-1684 AD), their cycles should be counted by seasons, not by the moon’s waxes and wanes. True Qi is stored internally, therefore the True Yang within the Water is not damaged. If they incorporate Daoist practices that improve their physical form, within a year they could ascend into the immortal state. (Book of Gynecology, Chapter 2, Fu Qingzhu)
In this case, please do not suspect this is due to deficiency of Qi and Blood, and impetuously give them treatments. There are plenty of women with innate extraordinary constitutions, however, due to improper lifestyles and habits, many fail to become immortals.
Fu Qingzhu proposed a formula for such women, called Assist the Immortal Decoction:
白茯苓 Bai fu ling / white Poriae Cocos Sclerotium (5 Qian)
陳皮 Chen pi / Citri Reticulatae Pericarpium (5 Qian)
白朮 Bai zhu / white Atractylodis Macrocephalae Rhizoma (3 Qian, earth stir-fried)
白芍 Bai shao / Paeoniae Radix alba (3 Qian, wine mix-fried)
山藥 Shan yao / Dioscoreae Oppositae Radix (3 Qian, dry fried)
菟絲子 Tu si zi / Cuscutae Chinensis Semen (2 Qian, wine mix-fried)
杜仲 Du zhong / Eucommiae Ulmoidis Cortex (1 Qian, stir fried until blackened)
甘草 Gan Cao / Glycyrrhizae Uralensis Radix (1 Qian)
Decoct [herbs] with water collected from a river.
Four doses and menstruation patterns remain unchanged, this means the person is a candidate of immortal. Stop taking this formula immediately. (And find a good Qi Gong master!)
Not damaging the natural Qi and Blood is the most important principle in regulating menstruation. This formula strengthens the Spleen and benefits the Kidney without causing stagnation, resolving stagnation and clearing phlegm without draining.