Genetic Predispositi: Not all cancers have genetic predisposition. It depende on what type of cencer(s) your friend had.
Answered 8/30/2012
5.7k views
Gene or chemo: Occasionally, a person can have a change in his dna which predispose this person to develop cancer. In addition, if one has cancer and undergoes chemotherapy, certain chemotherapy itself can cause damage to normal tissue and cause therapy related secondary cancer.
Answered 7/25/2017
5.6k views
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