The removal of one testicle, coupled with other aspects of treatment, can mean a decrease in fertility. Before undergoing treatment, virtually all testicular cancer patients “bank” sperm, which is like donating to a sperm bank, only the sperm is for your future use. Not all testicular cancer survivors become infertile, but banking sperm is considered good “insurance” to have, just in case. And we strongly recommend this. Contact us if you have more questions about banking sperm.