MATERNAL HYPERTANSION AND NEONATAL NEUTROPENIA. ✓ Maternal hypertension effects the hematopoietic system of fetus. In this study, total white blood cell, polymorphonuclear leukocytes and lymphocytes count were compared in two groups of newborns. First group included 37 newborns whose mothers had hypertension during preg¬nancy (n=37), and, control group consisted of 40 newborns whose mothers were normotensive. All newborns were mature and their birth weights were above 2500 gr. Blood samples were col¬lected after 12 hours from delivery. The diagnosis of hypertension was based on two recordings, obtained at least six hours apart, of a diastolic blood pressure above 90 mmHg or a systolic blood pressure above 140 mmHg. Mean polymorphonuclear leukocytes was significantly low in the first group (9800+3300), in relate to control group (13300+4300) (p