Welsh bomb-disposal research raises questions for wider military cancer study
Research involving a Welsh university has highlighted a question a national military-health study will need to examine: whether some bomb-disposal veterans face a higher risk of cancer. The University of Wales Trinity Saint David has published an update on its work with former Army ammunition technicians. Its researchers have reported an unusual pattern of bladder-cancer diagnoses, but have not established that explosives exposure caused those cases.
What the smaller study found
The peer-reviewed study, published in BJU International in 2025, received 203 questionnaire responses from 688 veterans approached through a bomb-disposal charity. Twelve respondents reported bladder cancer. Researchers calculated a standardised incidence ratio of 5.03 for people below 70 compared with the general UK population below that age. The 95% confidence interval was 2.62 to 9.67, showing substantial uncertainty around the estimate. That is not a finding that every bomb-disposal veteran has five times the risk. The work involved a particular veteran network and a minority responded. Because the information came from a questionnaire, who responded and how exposures were recalled are important limitations. Reported exposure and a cancer diagnosis occurring in the same group do not, by themselves, establish causation.
The larger study asks a broader question
The MOD announced its cancer study in July. Today’s university update is a Welsh research development, not a new launch of that national programme. UWTSD says the planned programme covers approximately 1.4 million serving personnel and veterans. Its aim is to compare cancer incidence and mortality with the wider UK population, then examine differences between groups within the Armed Forces. The MOD’s published notice distinguishes regular service since 1990 from reserve service since 2013, with additional coverage for reservists deployed on specified conflicts. Readers should use that notice to check the full inclusion rules rather than assume everyone who served is included.
Why different military jobs matter
UWTSD researcher Dr Gareth Collett, a former head of UK bomb disposal, argues that analysing the Armed Forces as one population could miss differences between occupations. He has been appointed the study’s independent advocate. Handling, storing and disposing of munitions are different activities. A larger study can investigate patterns across such groups; it cannot be assumed in advance to confirm the smaller survey’s result. UWTSD says the MOD intends to publish annual cancer incidence and mortality figures from 2027.
What personnel and veterans can check
The MOD notice explains which records it plans to use, the arrangements for keeping identifiable information separate from the research database, and how to opt out. The study documents are linked below. Neither the university update nor the earlier paper establishes an individual diagnosis or a proven cause. The important next step is stronger evidence about whether risks differ between occupations and what prevention would follow if they do.