Experts Warn of 'Explosion' in False Widow Spider Population Across UK
False Widow Spider Surge Linked to Doubled Hospital Admissions

Experts Warn of 'Explosion' in False Widow Spider Population Across UK

Hospital admissions in England for spider bites have doubled over the last decade, according to provisional NHS figures. The data shows a significant rise from 47 cases in 2015 to 100 in 2025, with experts attributing this increase to an 'explosion' in the population of noble false widow spiders. This species is described as the 'most dangerous spider breeding in Britain,' highlighting growing concerns about public health and safety.

Rising Numbers and Geographic Spread

The noble false widow spider, originally from Madeira and the Canary Islands, has become significantly more abundant in recent years, particularly in southern England. Academics note that these spiders are now more willing to bite than previously thought, contributing to the uptick in hospital admissions. While bites typically cause pain and itching, the more serious risks come from bacteria carried by the spiders, which can lead to severe complications such as amputation, sepsis, or even death in rare cases.

Public Awareness and Precautions

Experts advise the public to be aware of the risks posed by false widow spiders without becoming overly alarmed. Basic precautions can help minimise the chances of being bitten. Recommendations include:

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  • Avoiding handling spiders or disturbing their webs.
  • Wearing gloves when gardening or working in areas where spiders may be present.
  • Seeking medical attention promptly if bitten, especially if symptoms worsen.

By staying informed and taking simple steps, individuals can reduce their risk while coexisting with this increasingly common species.

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