Last checked September 2026 against 26 sources · Editorial policy
Low progesterone symptoms
Low progesterone symptoms outside pregnancy include irregular periods, trouble getting pregnant, mood changes, anxiety or low mood, trouble sleeping and hot flashes. The usual cause is not ovulating, because progesterone is made after ovulation. That's common in perimenopause, PCOS, high stress and low weight. In pregnancy, low progesterone is linked to miscarriage and ectopic pregnancy. Treatment depends on the cause and on whether you want to get pregnant.
Irregular or heavy periods, poor sleep, anxiety and hot flashes can signal low progesterone, often the first hormone change in perimenopause. Causes, tests, options.
Low progesterone: expectation vs reality
What people often expect
“A progesterone blood test will show whether mine is low”
What the evidence shows
Progesterone depends on the cycle day: Labcorp's range is 0.1 to 0.9 ng/mL before ovulation and 1.8 to 23.9 afterwards, so a test on the wrong day looks low in everyone. The test is mainly used to confirm ovulation, so timing matters. Even a short luteal phase hasn't been proven to cause infertility on its own.
Low progesterone symptoms and causes
Symptoms of low progesterone in women
Cleveland Clinic lists irregular periods, difficulty conceiving, mood changes, anxiety or depression, trouble sleeping and hot flashes as symptoms of low progesterone when you're not pregnant. Low progesterone can also leave you more tired. Because progesterone balances estrogen's effect on the lining, low levels can also mean heavier periods.
What causes low progesterone?
MedlinePlus lists not ovulating normally, having no periods, PCOS, high stress, perimenopause and low cholesterol as causes of low progesterone outside pregnancy. Stress hormone cortisol can affect the body's ability to make progesterone. Stress, weight loss and excessive exercise can also stop ovulation altogether through functional hypothalamic amenorrhea.
Low progesterone in perimenopause
Ovulation becomes less reliable from your 40s, and no ovulation means no progesterone that month. In one study, luteal progesterone fell with each stage of reproductive aging, and nine cycles without ovulation occurred in the late menopause transition group. A study of daily urine found lower progesterone after ovulation in perimenopausal women than in younger women, alongside higher estrogen.
Learn more →Low progesterone and sleep
Progesterone has calming, sleep-promoting effects, and trouble sleeping is a recognized symptom of low levels. In a small trial in postmenopausal women, 300 mg of progesterone at bedtime restored disturbed sleep, with 53% less time awake. In a trial in perimenopausal women, those taking progesterone reported better sleep quality and fewer night sweats.
Learn more →Low progesterone in pregnancy
Progesterone keeps the uterine lining thick enough to support a pregnancy. Low levels in pregnancy are linked to ectopic pregnancy, miscarriage and pre-eclampsia. In a Cochrane review, vaginal progesterone increased live births for women with early pregnancy bleeding and a previous miscarriage (risk ratio 1.08), but made little difference for those with no previous miscarriage.
Luteal phase deficiency
Luteal phase deficiency means the phase after ovulation lasts 10 days or less, from too little or too short progesterone or a lining that doesn't respond. The American Society for Reproductive Medicine says it also occurs in fertile women with normal periods and hasn't been proven to cause infertility or recurrent miscarriage on its own.
How low progesterone is tested
A blood test is most commonly used to check whether you've ovulated. Levels change with the cycle and pregnancy, so the result depends on timing and you may need repeat tests. After menopause, Labcorp's range is 0.0 to 0.1 ng/mL because there's no ovulation. The test isn't needed to diagnose perimenopause.
Learn more →Low progesterone and missed periods
Without ovulation and progesterone, the lining may not shed on schedule, so periods become irregular or stop. Doctors can give a short course of a progestogen to bring on a bleed: in a trial of Prometrium for missed periods, 80% of women bled within 7 days of the last dose. Missed periods still need checking for pregnancy, thyroid problems and PCOS.
Learn more →Low progesterone by the numbers
From the studies on this page
of women with missed periods bled within 7 days after a course of Prometrium in a trial
80%
1.8–23.9 ng/mL
10 days
1.08
Progesterone ranges depend on cycle day and pregnancy, so results only make sense with the date of your last period.
Low progesterone symptoms or something else?
Irregular periods, poor sleep and mood changes have many causes besides low progesterone. These are the common ones to rule out.
Pregnancy
Check →A late or missed period, sore breasts or nausea.
Test: Pregnancy test
Thyroid problems
Check →Irregular periods with tiredness, weight change or feeling too hot or cold.
Test: TSH blood test
PCOS (PMOS)
Irregular or missed periods with excess hair, acne or weight gain.
Test: Doctor's assessment and blood tests
Depression or anxiety
Check →Low mood, worry and poor sleep that don't follow your cycle.
Test: Doctor's assessment
Low weight or overtraining
Missed periods after weight loss, heavy training or stress.
Test: Doctor's assessment and hormone tests
Low progesterone treatment: what works
Progesterone with HRT in perimenopause
First stepIf you take estrogen for menopause symptoms and have a uterus, micronized progesterone protects the lining. It's taken for part of each month while you still have periods.
Related guide →Hormonal IUD for heavy periods
First stepWhen cycles without ovulation cause heavy bleeding, NICE suggests the levonorgestrel IUD as a first treatment in many women; it also provides contraception.
Related guide →Progestogen courses for missed periods
If this is the causeA short course brings on a bleed and protects the lining when periods have stopped; the cause still needs finding.
Related guide →Vaginal progesterone in early pregnancy
If this is the causeIncreases live births for women with bleeding in early pregnancy who've had a previous miscarriage, and is used in fertility treatment.
Foods, vitamins and creams
No good evidenceNo diet reliably raises progesterone, and wild yam and OTC creams didn't change levels or symptoms in trials.
Related guide →
When to see a doctor about low progesterone
You've missed 3 periods in a row
See a doctor, who may run blood tests to find the cause.
Heavy or frequent periods in your 40s
See a doctor. Heavy bleeding needs checking for anemia and changes in the uterus.
More →Trying to conceive for a year without success
See a doctor; a progesterone test can show whether you ovulate.
Urgent: Bleeding and one-sided pain in early pregnancy
Call 911 or go to the ER. It can be an ectopic pregnancy, which can be a medical emergency.
Low progesterone: questions women ask
What are the symptoms of low progesterone in females?
Irregular periods, trouble getting pregnant, mood changes, anxiety or low mood, trouble sleeping and hot flashes. Low progesterone can also mean heavier periods, because estrogen builds the lining without progesterone to balance it.
What causes low progesterone?
Mostly not ovulating, as happens in perimenopause, PCOS and with high stress, low weight or heavy exercise. Low cholesterol and missing periods for other reasons are also linked to low levels.
What does low progesterone mean?
Outside pregnancy, it usually means you didn't ovulate that cycle or the test was done before ovulation. In pregnancy, it can signal a higher risk of miscarriage or an ectopic pregnancy, so it needs follow-up.
What happens with low progesterone in pregnancy?
It's linked to miscarriage, ectopic pregnancy and pre-eclampsia. For women with early bleeding and a previous miscarriage, vaginal progesterone increases the chance of a live birth, according to a Cochrane review.
How is low progesterone treated?
It depends on the cause and your goal: progesterone with HRT in perimenopause, a hormonal IUD for heavy bleeding, progestogen courses for missed periods, and fertility or pregnancy treatment when trying to conceive.
Is there a cure for low progesterone?
If ovulation stopped because of stress, weight loss or excessive exercise, the Endocrine Society recommends medical, dietary and mental health support to address the cause. In perimenopause, falling progesterone is part of the natural transition, and treatment targets the symptoms.
Can low progesterone cause anxiety?
Mood changes, anxiety and depression are listed symptoms of low progesterone. Anxiety in midlife also has other causes, so it's worth discussing with a doctor.
Related →Can low progesterone cause hot flashes?
Hot flashes are listed among low progesterone symptoms, though falling estrogen is the main driver. In postmenopausal women, 300 mg of progesterone at bedtime reduced hot flash scores in a trial.
Is progesterone deficiency the same as luteal phase defect?
Luteal phase deficiency is one form: a phase after ovulation of 10 days or less. Fertility specialists say it hasn't been proven to cause infertility on its own, and how best to diagnose it is disputed.
Sources
- Cleveland Clinic. Progesterone: natural function, levels and side effects.
- MedlinePlus, US National Library of Medicine. Progesterone test.
- Labcorp. Progesterone (test 004317): reference range.
- Practice Committee of the American Society for Reproductive Medicine and Practice Committee of the Society for Reproductive Endocrinology and Infertility. Diagnosis and treatment of luteal phase deficiency: a Committee Opinion. Fertil Steril. 2026;126(4):633-639.
- Cleveland Clinic. High estrogen: causes, symptoms, dominance and treatment.
- Gordon CM, Ackerman KE, Berga SL, et al. Functional Hypothalamic Amenorrhea: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2017;102(5):1413-1439.
- Hale GE, Zhao X, Hughes CL, et al. Endocrine features of menstrual cycles in middle and late reproductive age and the menopausal transition classified according to the Staging of Reproductive Aging Workshop (STRAW) staging system. J Clin Endocrinol Metab. 2007;92(8):3060-7.
- Santoro N, Brown JR, Adel T, et al. Characterization of reproductive hormonal dynamics in the perimenopause. J Clin Endocrinol Metab. 1996;81(4):1495-501.
- Caufriez A, Leproult R, L'Hermite-Balériaux M, et al. Progesterone prevents sleep disturbances and modulates GH, TSH, and melatonin secretion in postmenopausal women. J Clin Endocrinol Metab. 2011;96(4):E614-23.
- Prior JC, Cameron A, Fung M, et al. Oral micronized progesterone for perimenopausal night sweats and hot flushes a Phase III Canada-wide randomized placebo-controlled 4 month trial. Sci Rep. 2023;13(1):9082.
- Devall AJ, Papadopoulou A, Podesek M, et al. Progestogens for preventing miscarriage: a network meta-analysis. Cochrane Database Syst Rev. 2021;4(4):CD013792.
- NICE. Menopause: identification and management (NG23). Updated 2024.
- Prescribing information: Prometrium (progesterone capsules). Acertis Pharmaceuticals, 2026. DailyMed, US National Library of Medicine.
- NHS. Missed or late periods.
- NHS. Tiredness and fatigue.
- NHS. Depression in adults.
- NHS. Utrogestan (micronised progesterone): about.
- NHS. Sequential combined HRT: about.
- NICE. Heavy menstrual bleeding: assessment and management (NG88).
- Women's Health Concern (British Menopause Society). Contraception for women over the age of 40. Fact sheet, 2025.
- Komesaroff PA, Black CV, Cable V, et al. Effects of wild yam extract on menopausal symptoms, lipids and sex hormones in healthy menopausal women. Climacteric. 2001;4(2):144-50.
- Wren BG, Champion SM, Willetts K, et al. Transdermal progesterone and its effect on vasomotor symptoms, blood lipid levels, bone metabolic markers, moods, and quality of life for postmenopausal women. Menopause. 2003;10(1):13-8.
- NHS. Heavy periods.
- National 911 Program. 911.gov.
- NHS. Generalised anxiety disorder (GAD).
- Hitchcock CL, Prior JC. Oral micronized progesterone for vasomotor symptoms--a placebo-controlled randomized trial in healthy postmenopausal women. Menopause. 2012;19(8):886-93.
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