Hypersplenism is a condition in which the spleen is overactive.
Hypersplenism can be caused by:
Ferri FF. Ferriās Clinical Advisor 2007: Instant Diagnosis and Treatment. 9th ed. Philadelphia, Pa: Mosby; 2007:443.
Hoffman R, Benz Jr. EJ, Shattil SJ, et al., eds. Hematology: Basic Principles and Practice. 4th ed. Philladelphia, Pa: Churchill Livingston; 2005:711-12.