N'afọ 1987, US EPA kewara ya dị ka ihe nwere ike ịbụ carcinogen nke mmadụ, na mgbe ọmụmụ ndị ọzọ gasịrị, WHO International Agency for Research on Cancer (IARC) na 1995 kewara ya dị ka ihe nwere ike ịbụ carcinogen nke mmadụ. Ozi ndị ọzọ na nyocha nke data niile a maara mere ka IARC weghachite formaldehyde dị ka ihe a maara na ọ bụ carcinogen nke mmadụ metụtara ọrịa cancer nke imi imi na ọrịa kansa. Nnyocha nke 2009 na 2010 egosila na enwere mmekọrịta dị mma n'etiti ikpughe na formaldehyde na mmepe nke ọrịa kansa, ọkachasị myeloid leukemia. Ọrịa kansa nke imi na ọrịa kansa bụ ihe na-adịghị ahụkebe, yana ọnụ ọgụgụ kwa afọ na United States nke ihe dị ka 4,000. Ihe dị ka 30,000 nke ọrịa kansa myeloid na-eme na United States kwa afọ.
ihe nwere ike ịkpata ọrịa kansa na mmadụ