I encounter this once in a while as I am doing bloods and I am scared to miss if something is going on all the time. I have seen Idexx guide to hematology webinars by Dennis DeNicola and he says that reticulocitosis might mean that there is microloss of blood somehwere. He also mentioned this paper https://pubmed.ncbi.nlm.nih.gov/25488123/ which evaluates nsaids, oseoarthritis and reticulocytosis.
