My family has been hit with a biggie lately which explains why I haven't been around as much lately. Long story short my DH has cancer. His chemo begins on Monday. My question is this; How can I say this? Is there any residual chemical in seman that can be harmful to a partner? What a question..... The goal is to help DH get well, not to trade one set of problems for another. A friend some yrs ago had to use condoms for protection when her DH had those seeds for prostate cancer. A very different senerio I know. I would think the chemicals in chemo would have to be excreted somewhere. Will have to ask doctor....