So, yeah, hubby's now experiencing the symptoms of gynecomastia. He had his first mammogram to make sure it wasn't cancer and then saw an endocrinologist, and sure enough, it turns out that kidney failure affects the ability to make testosterone. Nothing has been prescribed, it's just another thing. But hey, at least it's not cancer.
According to the Mayo Clinic website (
https://www.mayoclinic.org/diseases-conditions/gynecomastia/symptoms-causes/syc-20351793) about half of men on dialysis deal with this, but we didn't know until it happened to hubby, so I'm posting to let others know (just in case).