Miscarriage is common and the risk changes predictably with gestational age and maternal age. About 8% of miscarriages are reported after 6 weeks when fetal heart activity is present, and roughly 80% occur before 12 weeks. Chromosomal abnormalities account for about half of miscarriages, while risk rises to about 25% to 50% by age 40.
Key Takeaways
- ACOG states that uterine aspiration is the preferred method when certain criteria for incomplete miscarriage are met, emphasizing high efficacy
- A randomized trial found misoprostol for missed miscarriage resulted in complete expulsion by day 7 in about 76%
- A large network meta-analysis of uterine evacuation vs medical management estimated that surgery has higher immediate completion rates than medical methods
- 80% of miscarriages occur before 12 weeks of pregnancy
- After 6 weeks of gestation, the miscarriage risk is reported as about 8% when fetal heart activity is present
- Miscarriage is estimated to occur in about 20% of clinically recognized pregnancies, and the rate increases with maternal age
- Single-gene and structural causes account for a minority share of miscarriages in genetic etiologies; chromosomal abnormalities are the largest group (~50%)
- Maternal smoking is associated with higher miscarriage risk; one meta-analysis found a pooled relative risk of ~1.23
- High maternal caffeine intake is associated with miscarriage risk; a meta-analysis found RR ~1.37 for high intake
- Loss of pregnancy is common; the US costs of care for pregnancy loss include clinician visits, ultrasounds, medications, and procedures, with economic impact documented in health-economics literature
- Hospital inpatient treatment costs for early pregnancy loss can be substantially higher than outpatient medical management in health-system cost models
- A systematic review of economic evaluations for miscarriage-related care identifies multiple cost components including hospitalizations, procedures, and medication
- In a US consumer survey, 72% of adults say they use the internet to search for health information
- Over 1.9 million people in the US had an app-enabled digital health visit recorded in 2022 (digital health usage is tracked by HIMSS/industry reporting)
- Telehealth use expanded rapidly; one federal report notes that in 2020, 80% of surveyed providers offered telehealth services
Miscarriage is common, especially before 12 weeks and after age 35, and rates rise with risk factors.
Related reading
01 · Category
Clinical Management9 stats
01
ACOG states that uterine aspiration is the preferred method when certain criteria for incomplete miscarriage are met, emphasizing high efficacyhttps://www.acog.org/womens-health/faqs/miscarriage
02
A randomized trial found misoprostol for missed miscarriage resulted in complete expulsion by day 7 in about 76%https://www.nejm.org/doi/full/10.1056/NEJMoa1203765
03
A large network meta-analysis of uterine evacuation vs medical management estimated that surgery has higher immediate completion rates than medical methodshttps://pmc.ncbi.nlm.nih.gov/articles/PMC7606472/
04
RhD prophylaxis guidance: ACOG recommends RhIg for bleeding events in Rh-negative pregnant patients after certain gestational criteriahttps://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2017/09/prevention-of-rh-d-revaluation-in-obstetric-care
05
Follow-up ultrasound or serum hCG is commonly used; clinical references describe that hCG should decline to non-pregnant levels within weeks after treatmenthttps://radiopaedia.org/articles/miscarriage?lang=us
06
After miscarriage, the probability of a subsequent live birth is reported as ~65%–75% in general cohortshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3718618/
07
Subsequent fertility: a study reports that women with one miscarriage still have a ~87% chance of live birth in the next pregnancyhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3703114/
08
In the UK, NICE NG126 provides national clinical guidance for ectopic pregnancy and miscarriage, shaping care pathwayshttps://www.nice.org.uk/guidance/ng126
09
NICE guideline NG126 covers miscarriage and ectopic pregnancy across first-trimester settings and follow-up schedulinghttps://www.nice.org.uk/guidance/ng126/chapter/Recommendations
Interpretation
Clinical Management Interpretation
For clinical management of miscarriage, evidence suggests that medical approaches like misoprostol can achieve complete expulsion by day 7 in about 76% of missed miscarriage cases, though overall comparisons indicate uterine evacuation tends to deliver higher immediate completion rates and is often paired with key steps such as follow up testing and RhD prophylaxis when indicated.
More related reading
02 · Category
Epidemiology13 stats
01
80% of miscarriages occur before 12 weeks of pregnancyhttps://www.nichd.nih.gov/health/topics/miscarriage/conditioninfo/causes
02
After 6 weeks of gestation, the miscarriage risk is reported as about 8% when fetal heart activity is presenthttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4319013/
03
Miscarriage is estimated to occur in about 20% of clinically recognized pregnancies, and the rate increases with maternal agehttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2930656/
04
Approximately 2% of women will experience recurrent pregnancy loss (defined as 2 or more consecutive miscarriages)https://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2018/11/genetic-testing-recurrent-pregnancy-loss
05
A systematic review reports that the risk of miscarriage after a live birth is ~12%https://obgyn.onlinelibrary.wiley.com/doi/full/10.1111/1471-0528.13276
06
The risk of miscarriage is higher after age 35, reaching about 25%–50% by age 40https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6933158/
07
In a large cohort study, the miscarriage rate among women aged 20–24 was 9.6% compared with 26.7% among women aged 45–49https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/1105005
08
In a Danish registry study, miscarriage incidence increased from 8.1% at age 20–24 to 33.3% at age 45–49https://www.sciencedirect.com/science/article/pii/S0015028219301654
09
In the UK NHS, miscarriage statistics are estimated at 1 in 4 pregnancies (25%)https://www.nhs.uk/conditions/miscarriage/
10
About 1%–5% of women experience recurrent pregnancy loss (two or more miscarriages)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5665461/
11
In a registry study, spontaneous abortion increased with maternal age and parity; one cohort reports increasing rates across age bandshttps://www.sciencedirect.com/science/article/pii/S0002937815000770
12
A meta-analysis found that the risk of miscarriage increases after a prior miscarriage; one pooled estimate reports RR ~1.5 after one losshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4149413/
13
In the US, about 10%–20% of recognized pregnancies end in miscarriage, per clinical summarieshttps://www.ncbi.nlm.nih.gov/books/NBK525456/
Interpretation
Epidemiology Interpretation
From an epidemiology perspective, miscarriage risk is strongly age and timing dependent, with about 80% occurring before 12 weeks and overall likelihood rising to roughly 25% to 50% by age 40.
More related reading
03 · Category
Causes & Risk Factors10 stats
01
Single-gene and structural causes account for a minority share of miscarriages in genetic etiologies; chromosomal abnormalities are the largest group (~50%)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4152795/
02
Maternal smoking is associated with higher miscarriage risk; one meta-analysis found a pooled relative risk of ~1.23https://academic.oup.com/humrep/article/23/11/2612/2918358
03
High maternal caffeine intake is associated with miscarriage risk; a meta-analysis found RR ~1.37 for high intakehttps://academic.oup.com/humrep/article/27/9/2432/2910413
04
Alcohol consumption is associated with miscarriage risk; a meta-analysis reported RR ~1.35 for alcohol intakehttps://www.thelancet.com/journals/lanpub/article/PIIS1474-4422(19)30019-3/fulltext
05
Obesity is associated with increased miscarriage risk; a meta-analysis reported pooled RR about 1.36 for obese vs normal-weight womenhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5769571/
06
Diabetes mellitus is associated with increased miscarriage risk; a systematic review reported OR ~1.85https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5950859/
07
Thyroid dysfunction is associated with miscarriage; a meta-analysis reported OR ~2.1 for hypothyroidismhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5602095/
08
Uterine anomalies are associated with miscarriage risk; a systematic review reported pooled OR ~2.4 for septate uterushttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4752124/
09
Genetic testing can detect chromosomal abnormalities in many miscarriages; one review notes karyotyping yields an abnormal result in ~50% of caseshttps://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2016/10/genetic-testing-for-pregnancy-loss
10
Bacterial vaginosis is associated with miscarriage risk; a meta-analysis found RR ~1.42https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5665639/
Interpretation
Causes & Risk Factors Interpretation
In the causes and risk factors category, lifestyle and health exposures such as smoking, high caffeine intake, alcohol use, obesity, and diabetes are linked to consistently higher miscarriage risk, with pooled relative risks around 1.23 to 1.36 and diabetes showing an even higher odds ratio near 1.85.
04 · Category
Economic Impact10 stats
01
Loss of pregnancy is common; the US costs of care for pregnancy loss include clinician visits, ultrasounds, medications, and procedures, with economic impact documented in health-economics literaturehttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10236365/
02
Hospital inpatient treatment costs for early pregnancy loss can be substantially higher than outpatient medical management in health-system cost modelshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5018384/
03
A systematic review of economic evaluations for miscarriage-related care identifies multiple cost components including hospitalizations, procedures, and medicationhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7598765/
04
Claims-based analyses show that management setting (inpatient vs outpatient) significantly affects total costs for early pregnancy loss episodeshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3551455/
05
A cohort study using administrative data indicates that utilization of follow-up (ultrasound/office visits) differs by management strategyhttps://jamanetwork.com/journals/jamainternalmedicine/fullarticle/412821
06
A study reports that costs can differ by treatment type for early pregnancy failure, influencing budget impacthttps://www.sciencedirect.com/science/article/pii/S1521694220303146
07
A UK evaluation of miscarriage care pathways quantifies cost differences for expectant vs medical vs surgical management in decision modelshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10347440/
08
Patient time costs and productivity losses from pregnancy loss are measurable components in economic evaluations, and studies include days off workhttps://www.sciencedirect.com/science/article/pii/S0277953619305859
09
Mental health sequelae can increase healthcare utilization; studies quantify post-loss psychological healthcare contactshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6050731/
10
Approximately 15% of pregnancies involve some form of bleeding, and miscarriage evaluation pathways create utilization demand for early pregnancy bleeding clinicshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4773306/
Interpretation
Economic Impact Interpretation
Across economic-impact analyses, the total cost of miscarriage care often rises notably when treatment happens in inpatient settings rather than outpatient management, reflecting that inpatient care can be substantially more expensive and that cost components vary by care type and follow-up use.
More related reading
05 · Category
Health Technology10 stats
01
In a US consumer survey, 72% of adults say they use the internet to search for health informationhttps://www.pewresearch.org/internet/2013/01/15/health-online/
02
Over 1.9 million people in the US had an app-enabled digital health visit recorded in 2022 (digital health usage is tracked by HIMSS/industry reporting)https://www.himss.org/library/digital-health-2023-report
03
Telehealth use expanded rapidly; one federal report notes that in 2020, 80% of surveyed providers offered telehealth serviceshttps://www.cdc.gov/nchs/data/databriefs/db425.pdf
04
Wearable health devices are growing; global shipments of wearables reached hundreds of millions annually in industry reportshttps://www.idc.com/getdoc.jsp?containerId=prUS51913625
05
Digital therapeutics and clinical decision support increasingly support early pregnancy bleeding triage via EHR-based tools (industry documentation)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8441830/
06
Clinical AI for imaging in obstetrics/gynecology is emerging; FDA and peer-reviewed literature document development of algorithmic ultrasound analysis toolshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9769551/
07
Patient-reported outcome capture: EHR-integrated patient-reported instruments can improve symptom tracking; studies report measurable completion rateshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7022876/
08
Remote monitoring for pregnancy requires measurement; WHO guidance and studies quantify use of remote consultation in low-resource settingshttps://www.who.int/publications/i/item/9789241548373
09
Social media and online communities influence miscarriage information dissemination; a study reports that health misinformation exposures occur on social platforms at measurable rateshttps://jamanetwork.com/journals/jama/fullarticle/2737872
10
Vaccine and infection-related risks are tracked in pregnancy; CDC surveillance quantifies pregnancy-related hospitalization burdens that affect early pregnancy outcomeshttps://www.cdc.gov/mmwr/volumes/73/wr/mm7302a1.htm
Interpretation
Health Technology Interpretation
With 72% of US adults using the internet for health information and telehealth provider access jumping to 80% in 2020, Health Technology is clearly accelerating support for miscarriage related care through digital tools and data driven early pregnancy triage.
More related reading
06 · Category
Market Size & Trends5 stats
01
The global telemedicine market reached ~$50B+ in recent years according to industry reports, reflecting growth in remote clinical care relevant to early pregnancy loss follow-uphttps://www.fortunebusinessinsights.com/telemedicine-market-102171
02
The global telehealth market is forecast to grow to >$175B by 2030 in some industry forecasts, indicating investment relevant to pregnancy-care pathwayshttps://www.alliedmarketresearch.com/telemedicine-market
03
Point-of-care ultrasound (POCUS) is a growing market; industry reporting estimates rapid expansion in units and revenue relevant to early pregnancy evaluationhttps://www.marketsandmarkets.com/Market-Reports/point-of-care-ultrasound-market-142628703.html
04
The US health IT spending forecast reaches hundreds of billions by 2027, supporting clinical systems used for early pregnancy evaluationshttps://www.gartner.com/en/newsroom/press-releases/2024-10-14-gartner-forecasts-us-healthcare-organizations-to-spend-300-billion-on-health-it-by-2027
05
Abortion care access and early pregnancy management affects miscarriage-related care pathways; Guttmacher reports abortion incidence and service demand metricshttps://www.guttmacher.org/fact-sheet/induced-abortion-united-states
Interpretation
Market Size & Trends Interpretation
Telemedicine and related health tech are expanding fast, with the global telemedicine market reaching about $50B+ and telehealth projected to exceed $175B by 2030, signaling a rapidly growing market backdrop that will shape miscarriage care pathways, including early pregnancy evaluations supported by health IT spending in the hundreds of billions by 2027.
report visual · Breakdown
Miscarriage: when it happens and what fraction ends pregnancies
Most miscarriages occur early in pregnancy, and miscarriage is estimated to end a substantial share of recognized pregnancies.
80%
80% of miscarriages occur before 12 weeks of pregnancy
20%
Miscarriage is estimated to occur in about 20% of clinically recognized pregnancies, and the rate increases with materna
source-verifiednichd.nih.gov · ncbi.nlm.nih.gov
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Stefan Wendt. (2026, February 13). Miscarriages Statistics. Gitnux. https://gitnux.org/miscarriages-statistics
MLA
Stefan Wendt. "Miscarriages Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/miscarriages-statistics.
Chicago
Stefan Wendt. 2026. "Miscarriages Statistics." Gitnux. https://gitnux.org/miscarriages-statistics.
Sources & references
57 datasets cited across this report
+34 additional datasets cited (not shown individually)