I've had MGUS for 8 years so far. MGUS represents precancerous plasma cells, but only a 1%/year risk of them progressing to SMM or MM. No symptoms so there is no treatment other than monitoring bloodwork. I avoid stress, eat healthy, exercise, and take bioavailable curcumin (a supplement) just in case it helps with decreasing inflammation and TNF. It does hit one, being susceptible to MM or any other cancer, but it only morphs into MM for a small percentage of people. NIH and ResearchGate have a lot of peer-reviewed papers on MGUS (useful if you have insomnia, snooze worthy). A lot of us on this site have had MGUS for years. It can be scary, but also a chance to evaluate if one needs to make other changes or risks in life.