At least he won’t have to look down and worry if a spot he sees is melanoma.
Untatted skin turning yellow? Might want to get his liver checked.
Yep. Tattoo ink has been found in lymph nodes in autopsied people.
Also, from google:
“Cancer Risks: Some recent studies, including extensive twin registries and population surveys, have highlighted a potential association between tattooed individuals and an increased risk of developing malignant lymphoma. The Harvard T.H. Chan School of Public Health offers a breakdown on the potential links between Tattoos and Lymphoma.”