When cancer develops in someone with other diseases, it can be more serious, according to a recent annual report from several national cancer organizations.
“Cancer does not occur in isolation,” says Lawrence Shulman, MD, in commenting on the report. “It occurs in a human being, who may have other medical problems.”
Stem cell transplantation (sometimes called bone marrow transplants) is a treatment for certain forms of cancer, such as leukemia, lymphoma, and multiple myeloma, as well as other diseases. But before a patient can receive a transplant, stem cells must be collected from a donor (an allogeneic donation) or from the patient (an autologous transplant).
There has been some uncertainty surrounding this question, but recent studies have demonstrated that having a vasectomy has no effect on the risk of prostate or testicular cancer.
Older data – from studies tracking disease rates across broad population groups – suggested a modest connection, while other studies found no such link.