We've all had the occasional black poop, and usually, it's nothing to worry about â food additives like the dye that turns licorice black can tint your poop, too, and in some cases, Pepto-Bismol (really, again?) can even turn your poop black.
4. My report mentions giant platelets.. Giant platelet is a term used to describe platelets that are abnormally large, i.e., as large as a normal red blood cell. These may be seen in certain disorders such as immune thrombocytopenic purpura (ITP) or in rare inherited disorders such as Bernard-Soulier disease.. Mean platelet volume (MPV) and platelet distribution width (PDW) are calculations performed by automated blood analyzers. MPV reflects the average size of platelets present in a person's sample of blood while PDW reflects how uniform the platelets are in size.
Platelets are derived from bone marrow cells called megakaryocytes. Megakaryocytes are huge cells that break into fragments to form platelets. These cell fragments have no nucleus but do contain structures called granules.