An irregular cycle is not simply one that is not 28 days. What matters clinically is variation: how much the gap between periods changes from one cycle to the next. At my Belgravia clinic, irregular cycles are treated by identifying which pattern the timing points to, because a cycle that arrives early behaves differently from one that arrives late, and the two are treated in opposite directions. Before any of that, six causes are worth ruling out with your GP. Treatment is reviewed over three cycles, because timing is the thing being measured and it only reports back once a month.
Most women who come to this clinic about irregular cycles have been tracking them for a year or more, and have never been told what the threshold actually is.
They have an app full of data and no reference point. Some months it is 26 days, some months 38, once it was 45, and nobody has said whether that is a problem or simply how their body works. So the question they arrive with is almost never “how do I fix this?” It is “is this normal, and should I be worried?”
That is the right question, and it deserves a straight answer rather than a treatment plan.
What Actually Counts as Irregular
The reference range is wider than most women assume. A cycle is conventionally counted from the first day of one period to the first day of the next, and anything from roughly 21 to 35 days sits inside the normal adult range. A period itself typically lasts between two and seven days. So a consistent 33 day cycle is not irregular. It is simply long.
Irregularity is about variation, not length. If your cycles arrive at 26, 27, and 25 days, you are regular at the short end. If they arrive at 26, 34, and 30 days, you are irregular even though every one of those numbers falls within range. The clinically useful figure to bring to any appointment is not your average. It is your shortest cycle and your longest cycle over the last six months, because the gap between those two numbers is what a practitioner is actually reading.
Two situations are expected rather than concerning. Cycles are commonly irregular in the years after periods first begin, while the body settles into a rhythm, and again in the years approaching menopause, which is covered separately in perimenopause symptoms and what they actually look like.
What Most Women Get Wrong About Irregular Cycles
They treat “irregular” as one condition. It is not. It is a symptom with at least six distinct common causes, and the treatment for one is useless for another. This is the single most important thing on this page.
They assume a normal scan settles it. An ultrasound can show the ovarian appearance associated with polyendocrine metabolic ovarian syndrome, until recently called polycystic ovary syndrome, along with fibroids or structural change. It cannot tell you about thyroid function, prolactin, or whether you are eating enough for your training load. A clear scan narrows the field. It does not close it.
They wait for it to become a fertility problem before investigating. Irregular cycles are worth understanding whether or not you are trying to conceive, because the common causes have consequences beyond fertility. Untreated thyroid disease and long-term low oestrogen both matter in their own right.
They stop tracking once they start treatment. Timing is the outcome measure here. Without a record, neither you nor your practitioner can tell whether anything has changed.
Six Causes Worth Ruling Out First
This is the differential your GP will be working through, and knowing it makes the appointment more productive.
Cause | What points towards it |
|---|---|
Pregnancy | A late or missed period, which is often an early sign. Worth excluding first, before anything else on this list is considered |
Polyendocrine metabolic ovarian syndrome, until recently called polycystic ovary syndrome or PCOS | Long cycles or skipped periods, acne, unwanted hair growth, difficulty losing weight, family history |
Thyroid dysfunction | Cycles that changed alongside weight, energy, temperature tolerance, hair, or mood |
Perimenopause | Age typically forties or later, cycles shortening then lengthening, sleep disturbance, night sweats |
Low energy availability | High training load, restricted eating, significant weight loss, cycles lengthening or stopping |
Raised prolactin | Cycles lengthening or stopping, sometimes milky nipple discharge, headaches, certain medications |
Stress, recent illness, travel across time zones, and hormonal contraception coming to an end all affect timing too, and are common enough that they are worth mentioning before anything more elaborate is considered.
Chinese medicine works best once this list has been worked through, because a cycle disrupted by an underactive thyroid needs the thyroid treated, not the cycle.
How Traditional Chinese Medicine Reads Cycle Timing
Where the Western model asks which hormone is out of range, the TCM model asks what the timing itself is telling you. Timing is read as a signal, and it points in three directions.
Timing pattern | How it presents | Other signs | Classical formula family |
|---|---|---|---|
Early cycles, under 21 days | Period arrives ahead of schedule, often bright red, sometimes heavier | Feeling hot, thirst, irritability, disturbed sleep, or in the deficient version marked fatigue and pale blood | Formulas that clear heat, or tonify Qi to hold the cycle, selected to the case |
Late cycles, over 35 days | Period arrives behind schedule, often scanty, sometimes darker | Cold hands and feet, dull lower abdominal ache better with heat, pale complexion, tiredness | Formulas that warm and nourish blood, selected to the case |
Erratic cycles, no pattern | Alternating early and late with no rhythm | Premenstrual irritability, breast tenderness, bloating, symptoms clearly worse under stress | Xiao Yao San family |
The formulas above are listed for professional reference and to show how the reasoning works. They are not intended for self-medication. Chinese herbs must be prescribed to a diagnosed pattern by a practitioner who has taken your full history and knows what else you are taking.
The erratic pattern is the one most often seen in working women in central London, and it is worth being specific about why. In TCM terms, Liver Qi governs the smooth movement of Qi through the body, and it is the system most directly affected by sustained pressure and irregular routine. When it is constrained, the cycle loses its rhythm rather than simply shortening or lengthening. That is why the history taken at a first appointment covers workload, sleep, and travel alongside the cycle itself.
Note also that early and late cycles are treated in opposite directions. One clears, one warms. Applying the wrong one is not neutral, which is the reason self-prescribed formulas bought online so often disappoint.
Where Acupuncture and Herbal Medicine Each Fit
Acupuncture is applied here with the aim of regulating cycle timing, with point selection following the diagnosed pattern and treatment timed to phases of the cycle rather than delivered at random intervals. Responses vary between individuals and no outcome is guaranteed.
In my clinical experience the formula tends to do more of the work for a timing problem, with acupuncture supporting it, and the reason is practical. Acupuncture is given at the appointment. A formula is taken daily across the whole cycle and can be adjusted between cycles as the pattern moves. For a condition measured in months rather than sessions, that difference matters.
Formulas here are personalised rather than taken from a shelf, and prepared as powder, capsules, or tea depending on what you will realistically take consistently. The current fixed price is £80 per week, designed for a minimum course of two weeks, with complimentary UK delivery. Acupuncture sessions are £100 for 60 minutes, or £360 for a package of four.
The honest review window is three cycles. A cycle reports back once a month, so there is no way to compress that, and anyone promising a regulated cycle within a fortnight is selling rather than treating.
When to See Your GP
Arrange a GP appointment before, or alongside, starting any Chinese medicine treatment if:
- Your periods last longer than seven days
- Your cycles have suddenly become irregular after years of being predictable
- You have gone three months or more without a period and pregnancy has been excluded
- You are bleeding between periods, after sex, or after menopause
- Cycle changes came alongside weight change, hair loss, marked fatigue, or temperature intolerance
- You have milky nipple discharge, or persistent headaches with visual changes
- You have been trying to conceive for a year, or six months if you are over 35
Chinese medicine works best when endocrine and structural causes have been identified or excluded. A practitioner who discourages you from seeing your GP is a practitioner to leave.
If you take any medication, including hormonal contraception, bring the details to your consultation. Acupuncture does not interact pharmacologically with medication. Herbal formulas can, which is why a complete list is required before anything is prescribed.
Online Consultation, or In Person in Belgravia
Cycle timing is one of the conditions best suited to remote care, because the intervention that carries the work is a formula rather than a hands-on treatment, and because the measurement is a diary rather than a physical examination.
An online consultation runs 15 to 30 minutes by video and covers full medical history, symptom analysis across the whole cycle, and guided tongue and facial observation, which translate well to video. From that, a formula is prescribed and posted with complimentary UK delivery, then adjusted at follow-up.
Bring three things. A list of everything you currently take, prescription and supplement alike. Your shortest and longest cycle over the last six months. And any recent blood results, particularly thyroid function and prolactin if they have been done. The consultation opens with case history, and those numbers are what make the first formula land rather than the second.
It is also worth asking whether the practitioner can prescribe at all. Many clinics offer acupuncture only. I am qualified to prescribe Chinese herbal medicine as well, which for a cycle problem is the difference between treating one week in four and treating every day of it.
One further question worth asking any herbal practitioner is where the herbs come from. This clinic dispenses Sun Ten herbal extracts from Taiwan, which are tested for heavy metals and hold GMP, ISO, and TGA certification, and it works only within MHRA-compliant herbal medicine. Herbs bought unregulated online carry no such guarantee.
What You Will Receive After Your Consultation
- A personalised clinical report as a PDF. Your assessment, TCM diagnosis, treatment strategy, lifestyle recommendations, and follow-up plan.
- A tailored Chinese herbal medicine plan. A prescription formulated to your diagnosed pattern, revised as the cycle moves.
- A clear treatment roadmap. What improvement to expect, in what order, and at which cycle to reassess.
Frequently Asked Questions
Can Acupuncture Help With Period Irregularity?
Acupuncture is used in Chinese medicine to regulate cycle timing by treating the pattern the timing points to, most often heat or Qi deficiency behind early cycles, cold or blood deficiency behind late cycles, and constrained Liver Qi behind erratic ones. It is generally combined with a personalised herbal formula, reviewed over three cycles, and it does not replace investigation of endocrine causes such as thyroid dysfunction or PMOS, the condition until recently called polycystic ovary syndrome.
What Counts as an Irregular Period?
Irregularity is about variation rather than length. Adult cycles anywhere between roughly 21 and 35 days are within the normal range, so a consistent 33 day cycle is long rather than irregular. What matters is how much the gap changes between consecutive cycles. The most useful figures to bring to an appointment are your shortest and your longest cycle across the last six months.
What Is the Fastest Way to Fix Irregular Periods?
There is no fast route, and the honest answer is that the timeline is set by the cycle itself. Because a cycle reports back only once a month, meaningful assessment takes about three cycles regardless of the treatment used. What does speed things up is identifying the cause correctly at the start, which is why ruling out thyroid dysfunction, raised prolactin, and PMOS, formerly known as polycystic ovary syndrome, before beginning treatment is time well spent rather than time lost.
Can Acupuncture Fix Hormonal Imbalance?
Chinese medicine does not diagnose or treat hormone levels directly, and any practitioner claiming to correct a specific hormone should be treated with caution. What acupuncture and herbal medicine are used for is the pattern of symptoms a person presents with. Where a measurable endocrine condition exists, such as thyroid disease or raised prolactin, that requires medical diagnosis and management, and Chinese medicine runs alongside it rather than instead of it.
Are Irregular Periods Normal?
They are expected in two windows: the years after periods first start, while the body settles into a rhythm, and the years approaching menopause. Outside those windows, an irregular cycle is common but not automatically normal, and it is worth understanding rather than tolerating. Sudden irregularity after years of predictable cycles is the presentation that most warrants prompt medical assessment.
How Long Before I See a Change?
Plan to review after three cycles. Some women notice associated symptoms settling sooner, particularly premenstrual irritability and breast tenderness in the erratic pattern, but the timing itself is a slower measure. Keeping a simple record of start dates throughout is what makes that review meaningful.
What Happens Next
- Book an appointment through the booking page, in person in Belgravia or as an online consultation.
- Attend the consultation, bringing your cycle dates, medication list, and any recent blood results.
- Receive your personalised clinical report, herbal prescription, and treatment roadmap.
- Review after three cycles, with the formula adjusted according to how the timing has moved.
Liu’s Chinese Medicine Clinic is a women’s health clinic at 9 Eccleston St, London SW1W 9LX, inside the Light Centre in Belgravia. Clinic hours are Monday to Friday, 9:30 AM to 1:30 PM, with the last appointment at 1:30 PM. If you would rather ask a question before booking, you can message the clinic on WhatsApp.
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