   hemolysis (or haemolysis)âfrom the greek  (aima, haema, hemo-) meaning "blood" and  (lusis, lysis, -lysis) meaning a "losing", "setting free" or "releasing"an intermediate greek-english lexicon founded upon the seventh edition of liddell and scott's greek-english lexicon. oxford university press.âis the rupturing of erythrocytes (red blood cells) and the release of their contents (cytoplasm) into surrounding fluid (e.g., blood plasma). hemolysis may occur in vivo or in vitro (inside or outside the body). ==in vivo (inside the body)== in vivo hemolysis can be caused by a large number of medical conditions, including many gram-positive bacteria (e.g., streptococcus, enterococcus, and staphylococcus), some parasites (e.g., plasmodium), some autoimmune disorders (e.g., drug-induced hemolytic anemia), some genetic disorders (e.g., sickle-cell disease or g6pd deficiency), or blood with too low a solute concentration (hypotonic to cells). ===streptococcus===  many species of the genus streptococcus cause hemolysis. streptococcal bacteria species are classified according to their hemolytic properties. note that these hemolytic properties do not necessarily present in vivo. * alpha-hemolytic species, including s. pneumoniae, streptococcus mitis, s. mutans, and s. salivarius, oxidize the iron in the hemoglobin (turning it dark green in culture). * beta-hemolytic species, including s. pyogenes and s. agalactiae, completely rupture the red blood cells (visible as a halo in culture). * gamma-hemolytic, or non-hemolytic, species do not cause hemolysis and rarely cause illness. ===enterococcus===  the genus enterococcus includes lactic acid bacteria formerly classified as gamma-hemolytic group d in the genus streptococcus (see above), including e. faecilis (s. faecalis), e. faecium (s. faecium), e. durans (s. durans), and e. avium (s. avium). ===staphylococcus===  staphylococcus is another gram-positive cocci. s. aureus, the most common cause of "staph" infections, is frequently hemolytic on ba.microbelibrary.org, american society for microbiology ===parasitic hemolysis=== because the feeding process of the plasmodium parasites damages red blood cells, malaria is sometimes called &
Hematology