Abstract
We reviewed 103 cases of laryngeal cancer in Japanese Red Cross Ashikaga Hospital from 2005 to 2015. Ninety-six cases were male and 7 were female. Two of the females (28.6%) had a history of smoking and the other 5 were nonsmokers, although 3 of them were exposed to second-hand smoking at home. As a result, 5 people (71.4%) had a risk of smoking and second-hand smoking in case they had both of them. In Japan, there have been few reports of the association between second-hand smoking and laryngeal cancer. Based on our finding, second-hand smoking is a potential risk factor for laryngeal cancer.
