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Infertility surging after Covid shots: analysts

Evidence points to fewer births and more pregnancy complications and fetal abnormalities after injections, say researchers (Updated 12/23/23)

Investigators report Covid vaccines are associated with reduced birth rates, low sperm counts and motility, and elevated rates of miscarriages (i.e., spontaneous abortions, before 20 weeks gestation) and stillbirths (i.e., fetal demises, at least 20 weeks gestation).

Births have markedly declined in Taiwan and countries where Europeans live since Covid injections rolled out in December 2020, reports claim.

Disclaimer: I’m required as an American physician to tell people to follow US Centers for Disease Control (CDC) Covid vaccine guidelines, which say:

There is currently no evidence that any vaccines, including COVID-19 vaccines, cause fertility problems (problems trying to get pregnant) in women or men.

Nevertheless, it might be important to consider findings researchers say represent infertility signals CDC has not yet addressed.

I have not confirmed the accuracy, completeness, analysis, or significance of data furnished by governments and vaccine companies and relied on in the research reports linked here.

Some of these reports have not yet been peer reviewed but might provide warning signals others can critique or research further.

Nothing in this newsletter is medical advice. Please consult with your doctor in health matters.

Strong causal inference from current data

The evidence presented below is circumstantial and observational rather than interventional, e.g., from a randomized trial.

This means a causal relationship between Covid spike protein-encoding injections and fertility issues cannot be definitively proven from these reports alone.

But such causation is strongly suggested by (a) temporal associations, i.e., when fertility or pregnancy problems arise in many people soon after the injections; and (b) plausible mechanisms of disease involving inflammatory jab ingredients listed by manufacturers or reportedly found in vials by researchers — including lipid nanoparticle constituents, heavy metals, and the encoded viral spike protein. These substances might adversely affect the ovaries, testes, pituitary, hypothalamus, adrenals, or placenta, all of which produce sex hormones and perform other functions for starting and maintaining pregnancy.

To definitively prove a causal link between jabs and fertility, we’d need a prospective, randomized trial comparing pregnancy outcomes between vaccinated and unvaccinated groups of people.

This almost certainly won’t happen in the US or Europe for vaccines already on the market. Institutional review boards (IRBs) won’t approve any study that randomizes people to an unvaccinated control group, as governments claim it’s unethical not to give everyone current Covid shots that don’t substantially reduce viral infection or transmission and have no public long-term safety record.

So the best we have for authorized Covid injections is observational research, either prospective or retrospective cohort studies — where both vaccinated and unvaccinated people are followed over time to compare outcomes — or retrospective case-control or cross-sectional studies.

Case-control and cross-sectional studies can’t tell us anything about causation, though they help generate hypotheses to be tested further, prospectively.

Cohort studies, on the other hand, particularly prospective ones, can be highly suggestive of causation, especially when cohorts are matched for age, gender, and health status indicators.

Obstetric findings

James Thorp MD and colleagues conducted a retrospective cohort study in COVID-19 Vaccines: The Impact on Pregnancy Outcomes and Menstrual Function (January 2023):


COVID-19 vaccines, when compared to the influenza vaccines, are associated with a significant increase in AE [adverse events] with all proportional reporting ratios of > 2.0: menstrual abnormalities, miscarriage, fetal chromosomal abnormalities, fetal malformation, fetal cystic hygroma, fetal cardiac disorders, fetal arrhythmias, fetal cardiac arrest, fetal vascular malperfusion, fetal growth abnormalities, fetal abnormal surveillance, fetal placental thrombosis, low amniotic fluid, preeclampsia, premature delivery, preterm premature rupture of membrane, fetal death/stillbirth, and premature baby death (all p values were much smaller than 0.05).

When normalized by time-available, doses-given, or persons-received, all COVID-19 vaccine AE far exceed the safety signal on all recognized thresholds.


Pregnancy complications and menstrual abnormalities are significantly more frequent following COVID-19 vaccinations than influenza vaccinations.

A worldwide moratorium on the use of COVID-19 vaccines in pregnancy is advised until randomized prospective trials document safety in pregnancy and long-term follow-up in offspring.

This article by Steve Kirsch reports OB/GYN Dr. Kimberly Biss’s findings in her St. Petersburg, FL, practice since the Covid vaccine rollout:

  • 50% reduction in completed pregnancies

  • 50% increase in spontaneous abortions (miscarriages)

  • 25% increase in abnormal Pap smears, indicating cervical dysplasia, a precancerous lesion

  • 25% increase in cervical cancers

Obstetrics nurse Lisa Mooney wrote the following comment to that article:

[I] can confirm this as I work full time as OB/GYN RN, and have for the past 30 years.

Truly heartbreaking the increased level of not only embryonic/fetal loss and infertility BUT also increased morbidity and mortality.

My post partum RN friend is seeing a rise in Rx [treatment] resistant HTN [hypertension, i.e., high blood pressure], preterm births and very fussy breast fed infants.

Falling birth rates where Europeans live

According to Bujard and Andersson in Stockholm research reports in demography (2022):

There is no association of the fertility trends [in Germany or Sweden] with changes in unemployment, infection rates, or COVID-19 deaths.

However, there is a strong association between the onset of vaccination programmes and the fertility decline nine months after of this onset.

The fertility decline in the first months of 2022 in Germany and Sweden is remarkable.

Common explanations of fertility change during the pandemic do not apply in its aftermath.

The association between the onset of mass vaccinations and subsequent fertility decline indicates that people adjusted their behaviour to get vaccinated before becoming pregnant, as societies were opening up with post-pandemic life conditions.

Our study provides novel information on fertility declines in countries previously not affected by any COVID-19 baby bust.

James Hill MD’s Newsletter is a reader-supported publication. Please consider supporting my work with a paid subscription or donate with Ko-Fi.

Reports of infertility and pregnancy problems after Covid jabs

COVID-19 Vaccines: The Impact on Pregnancy Outcomes and Menstrual Function. James Thorp MD, et al. (January 2023)

Dr. Yeadon: Are "Vaccines" The "Action To Create Conditions For Fertility Decline" That Kissinger Advocated In 1974? Lioness of Judah (January 2023)

VAERS – 76% of Vaccine-Related Miscarriages from the Past 30 Years Occurred Once Pregnant Women Started Receiving COVID-19 Vaccines. Maria Ziminsky and Linnea Wahl (December 2022)

Is Depopulation we are Seeing Planned or Incidental? December Births and Deaths Update. Igor Chudov (December 2022)

Effects on Mother and Child That Bear Out Mike Yeadon’s Warnings. Lioness of Judah (December 2022)

Dr. James Thorp: What Pfizer’s Internal Data Reveals About Vaccines and Pregnancy. (video) (December 2022) (Shorter clip)

Alarming Drop in Birthrates and Fertility in MRNA-Vaccinated Women. Naomi Wolf interviews Igor Chudov (November 2022)

There Was a 72% Drop in Births in Australia Nine Months After Jab Rollout. Amy Sukwan (November 2022)

Australian Bureau of Statistics Shows 72% Drop in Births 9 Months After COVID Shots Started. Vaccine Impact (November 2022)

The missing babies of Europe. Mary Beth Pfeiffer (November 2022)

The global fertility decline. Amy Sukwan (November 2022)

50% increase in miscarriages; 50% decrease in fertility after COVID vax. Steve Kirsch (October 2022)

Will UK's Birth Rate Decline Bring "Hyper-Liberal Future"or Extinction? Igor Chudov (October 2022)

Dr. James Thorp, MD: 12.000 fold increase in menstrual abnormalities (video). (October 2022)

Major Update From OBGYN Expert Dr James Thorp On Miscarriages And Other Problems Post-Vaccine (video). (October 2022)

COVID jabs destroy sperm motility, cause spontaneous abortions, damage women’s ovaries. Lance Johnson (October 2022)

UK: Births in England Collapsed and are NOT Coming Back Up. Igor Chudov (September 2022)

Hungary: Highest Vaccinated Counties Have Worst Birth Rate Drops! Igor Chudov (July 2022)

Sweden's Birth Rate Dropping Precipitously Every Month. Igor Chudov (July 2022)

Taiwan: Birth Rate Dropped -27.66% in June 2022. Igor Chudov (July 2022)

Depopulation of Taiwan. Igor Chudov (June 2022)

Dramatic Decline in Births in Germany. Igor Chudov (June 2022)

Covid vaccines encode not only viral spike protein but also two mutated genes to virilize girls, cause ovarian failure and cancer: purported Moderna engineers. James Hill MD (March 2022)

Pfizer and the New World Order Depopulation Agenda: Anti-Sperm Antibody Is One of the “Adverse Events of Special Interest" Found in the Secret Pfizer Document. Lioness of Judah (March 2022)

Lasting Legacy of Trojan Horses. Andreas Oehler (March 2022)

Children might inherit spike protein DNA from vaccinated fathers. MIT scientist Stephanie Seneff interview by Denis Rancourt (January 2022)

If you have other articles on pregnancy outcomes, birth rates, or other fertility indicators following Covid jabs, please mention them in the comments below. I can add them to the list.

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James Hill, MD