When I was diagnosed with MF I started having night sweats, lost weight, had itching, and most terrifying - I could feel my spleen. What the hell is that? Fortunately, I am past all that now with the right medicine, but why does the spleen enlarge? This video explains it clearly from top experts. Please watch: patientpower.info/video/why... and let me know if this is helpful. It's your feedback that propels me.