Absent Periods (Amenorrhea)

Understanding Amenorrhea

Amenorrhea is the absence of menstruation in a female of reproductive age. It is a symptom of an underlying problem, not a disease in itself, and it is divided into primary and secondary types.^[1]

Common symptoms

The main sign is missing periods. Primary amenorrhea means no period has ever occurred by age 15, or by three years after breast development began. Secondary amenorrhea means no period for three months or more in someone who had regular cycles, or six months or more in someone whose cycles were irregular.^[1]

Other symptoms depend on the cause. They can include signs of excess male-type hormones such as acne and extra hair growth, milk discharge from the breasts, headaches or vision changes, and symptoms of low estrogen such as hot flashes.^[1]

Causes and risk factors

Pregnancy, breastfeeding and menopause are the normal causes of missed periods. Beyond these, most secondary amenorrhea comes from one of five conditions: functional hypothalamic amenorrhea, polycystic ovary syndrome (PCOS), high prolactin, primary ovarian insufficiency, or scarring inside the uterus.^[2]

Functional hypothalamic amenorrhea accounts for about a third of secondary cases. It results from psychological stress, disordered eating, excessive exercise, or a combination of these.^[3] Other causes include thyroid and other endocrine disorders, some medicines, chronic illness, and structural problems of the uterus, cervix or vagina.^[1]

How it is diagnosed and treated conventionally

Anyone with amenorrhea should be evaluated. The first steps are usually a history, a physical examination, a pregnancy test, blood hormone tests and often pelvic imaging.^[1]

Treatment depends on the cause. It may include lifestyle changes, hormone therapy or other medicines, surgery, and mental health support.^[1] For functional hypothalamic amenorrhea, an Endocrine Society guideline calls for a team approach that includes medical, dietary and mental health support.^[4]

Why Amenorrhea calls for a whole-person approach

Menstrual cycles depend on signals passing from the brain to the pituitary gland to the ovaries, and a problem at any point can stop them.^[2] Because the cause may be hormonal, metabolic, nutritional, emotional or structural, care works best when each contributing factor is identified and addressed by your medical team.

Supportive care can add attention to stress, sleep, energy and general well-being. It does not replace the search for the cause.

Stress and the brain-ovary signal

Psychological stress can interrupt the pulsed release of gonadotropin-releasing hormone from the hypothalamus. That signal drives the pituitary and ovaries, so when it falters, ovulation and periods stop.^[3] In a small randomized trial of women with functional hypothalamic amenorrhea, cognitive behavior therapy was followed by renewed ovarian activity in 6 of 8 women who ovulated, compared with 1 of 8 in the observation group.^[5]

Energy balance and exercise

Not eating enough for the energy you use can switch off the cycle. A review of dietary management describes low energy availability as a key trigger and advises more food and often less intense training, but not stopping activity altogether, plus stress reduction.^[6]

Hormones and metabolism

In PCOS, high androgen levels and insulin resistance are common alongside irregular or absent periods.^{[7, 8]} These drive part of the cycle disruption and are managed medically.

Bone and long-term health

When estrogen stays low, bone loss, infertility and effects on heart health and mood can follow.^[3] This is one reason amenorrhea should not be ignored or left to self-care.

Acupuncture as supportive care in Amenorrhea

What the research shows

No clinical trials were found that test acupuncture for amenorrhea as a whole. The research that exists is for two causes: PCOS, where absent or infrequent periods are a main feature, and premature ovarian insufficiency. The evidence is limited.

For PCOS, a 2025 Cochrane review included nine trials with 1,606 women. Compared with sham acupuncture, it found little to no difference in live birth or ovulation, and the certainty was low. One trial of 141 women suggested fewer days between periods, but the review rated that evidence as very uncertain. Adverse events were probably more common with acupuncture.^[9] An earlier trial of 84 women with PCOS found that 16 weeks of low-frequency electroacupuncture raised menstrual frequency from 0.28 to 0.69 per month, more than exercise or no treatment. That trial did not use a sham comparison.^[8]

For premature ovarian insufficiency, a meta-analysis of 13 trials with 775 women found that acupuncture was linked to lower FSH, higher estradiol and anti-Müllerian hormone, and a better overall response rate. The authors called for larger, carefully designed studies.^[10] Another review pooled 14 trials of acupoint stimulation with Chinese herbs against hormone therapy and reported more women with normalized cycles, and called the combined approach a possible complementary therapy.^[11] An umbrella review noted that earlier meta-analyses of PCOS and ovarian insufficiency had given inconclusive findings, while its own pooled analysis favored acupuncture for several hormone measures.^[7]

How acupuncture may work

Researchers propose that acupuncture may influence beta-endorphin, a brain chemical that may in turn affect gonadotropin-releasing hormone and therefore ovulation and the cycle. This idea comes from animal and clinical studies in PCOS and remains a hypothesis.^[12]

What treatment involves

Treatment uses fine, sterile, single-use needles placed at points on the abdomen, lower back, arms and legs, usually left in place for about 20 to 40 minutes. A course of several visits is followed by reassessment, and we ask for your diagnosis and recent test results first.

In prospective studies, about 9 in 100 patients had a minor reaction such as bleeding, soreness or a flare at the needle site, and serious events occurred in about 1 in 10,000 patients.^[13] Tell the practitioner first if you could be pregnant, have a bleeding disorder, take blood thinners, or have a pacemaker (relevant to electroacupuncture).

Ayurvedic medicine as supportive care in Amenorrhea

The Ayurvedic view

In Ayurveda, absent menstruation is traditionally described as artavakshaya, a reduction or loss of the menstrual fluid. It is explained in terms of the doshas, tissues and channels, with the pattern chosen for each person. These are traditional categories, not biomedical diagnoses.

Therapies that may be used

Care is individualized and traditionally combines:

• Regular meals, adequate nourishment and steady sleep and daily routines
• Warm sesame oil massage and stress-reducing practices
• Individually prescribed herbs and herbal formulas
• Panchakarma procedures only where traditionally appropriate and medically sensible

Panchakarma is not appropriate during pregnancy, acute illness or frailty, or before the cause of missed periods has been medically assessed. Missed periods should never be treated as something to "bring on" before pregnancy has been excluded.

What the research shows

The research on Ayurveda for amenorrhea is very limited. No randomized trials of Ayurvedic treatment for absent periods turned up. The studies that exist concern PCOS and are small. In one single-group study of 30 women with PCOS and infrequent periods, a satapushpa powder with sesame oil was followed by a shorter interval between periods at three months. With no comparison group, the study cannot show that the treatment caused the change.^[14]

A placebo-controlled trial of shatavari root extract in 70 women with PCOS found no difference in ovarian volume or hormone levels, but lower stress scores, a lower follicle count and a thicker endometrium than with placebo. Menstrual regularity was not its main outcome.^[15]

Herbal medicine as supportive care in Amenorrhea

Herbs and formulas that have been studied

Chinese herbal formulas for amenorrhea often include dang gui (Angelica sinensis), chuanxiong, taoren, honghua, licorice, poria, white atractylodes, cyperus, bupleurum, processed rehmannia and white peony.^[16] Traditional Persian medicine lists many plants for absent or infrequent periods, and clinical studies have examined a few of them, including chasteberry (Vitex agnus-castus), fenugreek, fennel, cinnamon, peony, sesame, mint and nettle.^[17]

What the research shows

Evidence for herbal medicine is limited and of low quality. A pooled analysis of 18 studies of Chinese herbal medicine for amenorrhea caused by antipsychotic drugs reported a response rate of about 91 percent, but it did not include randomized trials and the benefit usually took more than three months to appear.^[16]

A systematic review found 12 clinical studies of 8 plants for infrequent or absent periods. The authors concluded that few plants have been shown to work and that the findings serve as an outline for future studies.^[17] A Cochrane review of 8 trials of Chinese herbal medicine in women with PCOS and subfertility found insufficient evidence, with very low-certainty results and almost no safety data.^[18]

Safety and herb-drug interactions

Herbs are active substances and are chosen individually by a qualified practitioner. Herbs can interact with medicines. Reported examples include bleeding when danshen or ginkgo is combined with warfarin or aspirin, and bleeding between periods and unplanned pregnancies when St John's wort was taken with oral contraceptives.^[19] Tell us about all prescription medicines, hormone therapy and supplements.

Herbs traditionally used to promote menstruation are not appropriate in pregnancy or breastfeeding, so pregnancy must be excluded first. Tell us if you have liver or kidney disease or a planned procedure. In one study, about one fifth of Ayurvedic products bought online contained detectable lead, mercury or arsenic, so herbs should come from tested sources.^[20]

Transdermal medication therapy, an herbal preparation applied to the skin, is also offered. We found no studies of it for amenorrhea.

Translating traditional medicine into modern biological language

The comparisons here are interpretation, not equivalence. Chinese medicine often describes absent periods as blood deficiency, qi stagnation or blood stasis, and Ayurveda describes artavakshaya. Researchers studying the same problem measure the brain-to-ovary hormone signal, stress hormones, energy availability, insulin and androgen levels, and ovarian reserve.^{[3, 7]}

One mechanism proposed for acupuncture, a change in beta-endorphin signaling to the hypothalamus, loosely parallels the traditional idea of restoring free flow.^[12] No study has shown that a pattern or dosha corresponds to a specific biological process.

How this care fits with your medical care

Supportive care works alongside your physician, and you should keep your medical team and not stop or change prescribed treatment such as hormone therapy. We do not diagnose the cause of amenorrhea. For a condition like this, we ask that you are under a physician's care for it and that your treating team knows you are receiving complementary care.

Please bring your diagnosis, pregnancy and hormone test results, imaging reports, a full list of medicines and supplements, and any bone density results.

When to seek urgent medical care

Missed periods should be evaluated by a physician, and some symptoms need prompt attention.

• A positive pregnancy test, or missed periods with possible pregnancy and one-sided pelvic pain or bleeding
• Severe headache or new vision changes
• Milk discharge from the breasts together with missed periods
• Sudden or heavy bleeding, or severe pelvic pain
• Rapid weight loss, an eating disorder, or fainting or dizziness
• Thoughts of harming yourself; call or text 988, the Suicide and Crisis Lifeline

For an emergency, call 911 or go to the nearest emergency department.