Having to live with a single mastectomy Nov. 2021 and I would one million percent recommend a double mastectomy from the onset. If you keep the other side you have a higher than 1 in 7 chance of getting BC in the other side. It’s higher than 1 in 7 because you have had BC before. If you have a prophylactic mastectomy the chances go down to 5%. That’s what my surgeon told me. What’s higher 17-20% or 5%? Its a no-brainer. If women knew they wouldn’t be choosing singles. I had to fight tooth and nail for them to take the otherwide off after the fact (standard of care and public health care in Canada). So relieved it’s gone. As well, my cousin who is a surgical nurse said plastic surgeons prefer symmetry. I now have a double reconstruction that looks great! Why would I want to keep that sagging old breast in the first place. Change to a double mastectomy if you can. Good luck.