When these changes continue to occur, they are usually not just a one-off fluctuation. They may suggest that the body’s cycle regulation has become imbalanced.
A normal menstrual cycle is generally around 21–35 days. If the cycle is consistently early, delayed or irregular, it is considered a menstrual cycle irregularity.
Clinical focus: whether there is ovulation irregularity and disruption of hormonal rhythm.
Common approaches may include:
Often used for irregular cycles or ovulation-related concerns.
May be considered for those trying to conceive.
Such as polycystic ovary syndrome or thyroid issues.
The main focus is to use external regulation to help the cycle return to a relatively stable pattern.
In Traditional Chinese Medicine, menstrual regularity depends on the regulation of the Chong and Ren meridians, the movement of Qi and blood, and the coordinated function of the internal organs.
The Chong and Ren meridians play an important role in menstruation and cycle rhythm. If their regulation is disrupted, the period may come early, late or become irregular.
When Qi and blood are sufficient, menstrual flow is usually more regular and the colour is healthier. When Qi and blood are insufficient or not moving smoothly, flow may become light, dark or clotty.
Stress and emotional tension can affect the movement of Liver Qi. This may contribute to cycle irregularity and more noticeable premenstrual symptoms.
The Spleen supports the production of Qi and blood, while the Kidney is closely related to reproductive function and cycle regulation. When these systems are weakened or imbalanced, the cycle may become harder to stabilise.
Core TCM understanding: the main issue lies in Chong and Ren disharmony, with Qi and blood imbalance as the foundation, and disruption in the coordinated function of the Liver, Spleen and Kidney contributing to cycle irregularity.
The purpose of pattern assessment is to identify whether the cycle concern is mainly related to rhythm disruption, insufficient nourishment, or poor movement.
Key point: restricted Qi movement affects cycle rhythm.
Key point: insufficient production of Qi and blood.
Key point: blood flow is not moving freely.
Key point: reduced ability to regulate from the foundation.
The focus of treatment is not only to “make the period come on time”, but to help rebuild a more stable rhythm across the whole cycle.
Treatment may be adjusted according to different stages of the menstrual cycle:
Depending on the pattern, treatment may focus on:
Acupuncture may help support pelvic and uterine blood flow, and assist with cycle rhythm and endometrial environment.
Improving sleep, stress levels and daily routine can help reduce disruption to the menstrual cycle.
Treatment focus: helping the body restore its own ability to regulate the menstrual cycle.
This may suggest ovulation and rhythm dysregulation.
This may reflect changes in Qi, blood or the endometrial environment.
This may be related to Qi stagnation and blood stasis.
This may suggest reduced overall regulatory capacity.
Ovulation and endometrial rhythm may need to be assessed.
The key to menstrual health is not only the irregularity seen in the moment, but whether the body’s overall rhythm is stable.
When Qi and blood move smoothly and the cycle rhythm becomes steadier, the menstrual cycle can gradually return to a more predictable and stable pattern.
HK Clinic 
UK Clinic 
