Europe Faces Record Surge In Gonorrhea And Syphilis Cases, ECDC Warns

Europe is facing a sharp resurgence of sexually transmitted infections, with new data pointing to record levels of gonorrhea and syphilis across the region. The European Centre for Disease Prevention and Control reports that STI trends have reached their highest point since systematic monitoring began.

According to ECDC figures, more than 106,000 gonorrhea cases were recorded in Europe in 2024, a 4.3% increase compared with the previous year. Compared with 2014, the number of infections has risen by more than 300%, underscoring how rapidly the disease has re-established itself after years of decline.

Syphilis is following a similarly alarming trajectory. Nearly 46,000 syphilis cases were registered in 2024, up 8% from 2023 and more than double the levels seen in 2015. Experts warn that syphilis is often detected late, increasing the risk of severe complications and onward transmission.

ECDC specialist Bruno Chancho notes that, without treatment, STIs can result in chronic pain, infertility and, in the case of syphilis, serious damage to the heart and nervous system. Many infections remain asymptomatic for long periods, which makes regular testing crucial for sexually active people.

Why STI Rates Are Rising Again

European health authorities have been trying for a decade to bring STI rates under control, yet case numbers continue to climb. Part of the increase is linked to better testing access and more comprehensive surveillance, which capture infections that previously went unreported.

However, changing sexual behaviour is also a key factor, particularly among younger people who are more likely to forgo condoms. The spread of dating apps and casual encounters, combined with a perception that HIV is now more manageable, has contributed to declining condom use in many groups.

Statistics show that more than half of all gonorrhea and syphilis cases occur among men who have sex with men. While many countries have directed targeted prevention campaigns at this community, experts say these efforts have not fully kept pace with evolving social and sexual patterns.

Public health researchers also point to uneven access to sexual health services, especially outside major cities. Long waiting times, stigma and a lack of youth-friendly clinics discourage many at-risk individuals from seeking testing and timely treatment.

Surge In Congenital Syphilis Cases

Alongside adult infections, ECDC data reveal a worrying rise in congenital syphilis, when the infection passes from a pregnant woman to her baby. These cases can lead to miscarriage, stillbirth, premature birth or the death of the newborn shortly after delivery.

The number of congenital syphilis cases in Europe almost doubled from 78 in 2023 to 140 in 2024, the highest figure recorded since ECDC began monitoring this condition. ECDC scientist Otilia Mord describes this trend as one of the most alarming findings in the most recent dataset.

Experts say the increase indicates gaps in prenatal screening and follow-up care, particularly among socially vulnerable women and recent migrants. Early detection during pregnancy and prompt antibiotic treatment are highly effective at preventing transmission to the fetus.

Health agencies are urging countries to review their antenatal testing protocols and ensure that all pregnant women are screened for syphilis, regardless of perceived risk. Outreach to communities that face linguistic, financial or legal barriers to care is considered essential.

Chlamydia Trends And Wider Health Risks

Chlamydia remains the most commonly reported STI in Europe, although its numbers show a slight decline. In 2024, more than 213,000 chlamydia cases were confirmed, down from almost 231,000 the previous year, though experts caution that underdiagnosis remains substantial.

Despite being curable, untreated chlamydia can cause pelvic inflammatory disease, infertility and increased susceptibility to other infections. Public health officials stress that symptoms are often mild or absent, which makes regular screening and partner notification vital to halt transmission.

Clinicians warn that rising STI rates can also fuel antimicrobial resistance, particularly in gonorrhea, where treatment options are already narrowing. The World Health Organization has flagged resistant gonorrhea strains as a major global health threat that could render standard antibiotics ineffective.

This convergence of high caseloads and resistance risk intensifies the pressure on sexual health services. Without enhanced surveillance and rational antibiotic use, experts fear more treatment failures and longer chains of transmission.

Calls For Urgent Targeted Action

The ECDC is calling for urgent, targeted measures to curb the spread of STIs in Europe. Officials recommend scaling up comprehensive sex education, expanding access to free or low-cost condoms and improving testing infrastructure, especially for young people and key populations.

Digital tools such as home testing kits and telemedicine consultations are seen as promising ways to reach individuals who avoid traditional clinics. Community-led outreach and confidential services can help reduce stigma, which remains a major barrier to seeking care.

Experts emphasize that countries must invest in data systems capable of tracking outbreaks in real time and identifying emerging hotspots. They also urge closer integration between STI programmes and HIV, hepatitis and reproductive health services to offer patients one-stop access to care.

According to the ECDC, failing to act decisively now will likely entrench current trends, deepen health inequalities and increase long-term costs for healthcare systems. Policymakers are being pressed to treat the surge in gonorrhea and syphilis as a priority public health challenge, not a marginal issue.

Global Infectious Disease Backdrop

The STI surge in Europe comes against a broader backdrop of resurgent infectious diseases worldwide. The World Health Organization has recently declared Ebola outbreaks in the Democratic Republic of Congo and Uganda a public health emergency of international concern.

That outbreak, linked to the Bundibugyo strain of the virus, does not yet meet the criteria for a pandemic-level emergency. However, neighbouring countries face an elevated risk of cross-border spread, underlining the importance of vigilant surveillance and rapid response capacity.

Public health specialists argue that these parallel crises highlight systemic weaknesses exposed by the COVID-19 pandemic, from underfunded primary care to fragile laboratory networks. Strengthening these foundations, they say, will be crucial to managing both sexually transmitted and emerging infectious diseases.

As Europe and the wider world grapple with overlapping health threats, experts insist that prevention, education and equitable access to care remain the most effective and economical tools. The current STI data, they warn, should be treated as a clear signal that these tools have not yet been fully deployed.