OK, so I've been on Hydroxy for 6 years (for ET) and visited my Hematologist last week. He asked if I ever had a bone marrow biopsy done. I said no, and he was very upset (and from what I've been reading perhaps I don't blame him. The diagnosis was made on high platelet counts and JAK2+. Anybody else with MPN get diagnosed without the bone marrow biopsy?