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Short description: Absence of an organ or tissue from birth

Aplasia (/əˈplʒə/ (About this soundlisten); from Greek a, "not", "no" + plasis, "formation") is a birth defect where an organ or tissue is wholly or largely absent. It is caused by a defect in a developmental process.[1][2]

Aplastic anemia is the failure of the body to produce blood cells. It may occur at any time, and has multiple causes.[1][2]


See also


  1. 1.0 1.1 Stedman's medical dictionary. Baltimore: Williams and Wilkins. 1990. pp. 106. ISBN 0-683-07916-6. 
  2. 2.0 2.1 "Stedman's > aplasia".