This most often occurs when the mother has previously been exposed to blood antigens present on the fetus but foreign to her, through either a blood transfusion or a previous pregnancy. Hemolytic anemia
Because in vivo hemolysis destroys red blood cells, in uncontrolled, chronic or severe cases it can lead to hemolytic anemia. Hemolytic crisis
A hemolytic crisis, or hyperhemolytic crisis, is characterized by an accelerated rate of red blood cell destruction leading to anemia, jaundice, and reticulocytosis. Hemolytic crises are a major concern with sickle-cell disease and G6PD deficiency. Toxic agent ingestion or poisoning
Paxillus involutus ingestion can cause hemolysis. Space hemolysis
Spaceflight can cause hemolysis. Intrinsic causes
Hemolysis may result from intrinsic defects in the red blood cell itself:
Defects of red blood cell membrane production (as in hereditary spherocytosis and hereditary elliptocytosis)
Defects in hemoglobin production (as in thalassemia, sickle-cell disease and congenital dyserythropoietic anemia)
Defective red cell metabolism (as in glucose-6-phosphate dehydrogenase deficiency and pyruvate kinase deficiency)
Paroxysmal nocturnal hemoglobinuria (PNH), sometimes referred to as Marchiafava-Micheli syndrome, is a rare, acquired, potentially life-threatening disease of the blood characterized by complement-induced intravascular hemolytic anemia. Extrinsic causes
Extrinsic hemolysis is caused by the red blood cells environment:
Immune-mediated causes could include transient factors as in Mycoplasma pneumoniae infection (cold agglutinin disease) or permanent factors as in autoimmune diseases like autoimmune hemolytic anemia (itself more common in diseases such as systemic lupus erythematosus, rheumatoid arthritis, Hodgkins lymphoma, and chronic lymphocytic leukemia). Spur cell hemolytic anemia
Any of the causes of hypersplenism (increased activity of the spleen), such as portal hypertension.
Site most often refers to:

Archaeological site
Campsite, a place used for overnight stay in an outdoor area
Construction site
Location, a point or an area on the Earths surface or elsewhere
Website, a set of related web pages, typically with a common domain nameIt may also refer to:

Site, a National Register of Historic Places property type
SITE (originally known as Sculpture in the Environment), an American architecture and design firm
Site (mathematics), a category C together with a Grothendieck topology on C
The Site, a 1990s TV series that aired on MSNBC
SITE Intelligence Group, a for-profit organization tracking jihadist and white supremacist organizations
SITE Institute, a terrorism-tracking organization, precursor to the SITE Intelligence Group
Sindh Industrial and Trading Estate, a company in Sindh, Pakistan
SITE Centers, American commercial real estate company
SITE Town, a densely populated town in Karachi, Pakistan
S.I.T.E Industrial Area, an area in Karachi, Pakistan
Satellite Instructional Television Experiment, an experimental satellite communications project launched in India in 1975
Google Sites, web based website editor

See also
Sites, California
All pages with titles beginning with Site
All pages with titles containing Site