Posibleng Mga Sanhi para sa Pagbaba ng Haptoglobin Pangatlong Trimester ng Pagbubuntis Congestive Heart Failure Malalang Respiratory Distress Syndrome Namamanang Spherocytosis Disseminated Intravascular Coagulation Pernicious Anemia Di-paggana ng Atay Systemic Lupus Erythematosus Chronic na Lymphocytic Leukemia Thalassemia Paroxysmal Nocturnal Hemoglobinuria Sickle Cell Disease Malaria Plasmodium Falciparum Malaria Malalang Leukemia Wilson Disease Atypical Hemolytic Uremic Syndrome Weil Disease Alpha-Thalassemia Visceral Leishmaniasis Namamanang Elliptocytosis