Hi there, My husband was diagnosed with MM stage 3 in 2023, had standard protocol treatment until summer of last year when he had a SCT. He started maintenance treatment a year ago. His labs after SCT, specifically M protein were in the range of 0.1 and 0.04. This year the labs have been detected but not quantified until his last one. It’s now up to 0.04 g/dL. It’s the first spike and we are waiting to hear from his doctor if he needs to have his labs done again or any changes in treatment. Is this considered a relapse? How many times and/or increase on M protein quantity is considered relapse? Thanks, Margarita