The normal value of neutrophils in a 4-month-old baby is about 3600/μL (3.6 × 10⁹/L).
Neutrophils are the main barrier against bacterial and fungal invasion.The white blood cell count of a 4-month-old baby is about 12,000/μL (12 × 10⁹/L), of which the proportion of lymphocytes is about 0.6 and neutrophils about 0.3, i.e., the normal value of neutrophils in a 4-month-old baby is about 3,600/μL (3.6 × 10 ⁹/L).
The range of neutrophils in 4-month-old infants is approximately 1000 to 8500/μL (1.0-8.5) × 10⁹/L.
Therefore, the normal value of neutrophils in 4-month-old infants is about 3,600/μL (3.6×10⁹/L), and if it is lower than 1,000/μL or higher than 8,500/μL, it is necessary to consult the doctor to find out the cause in time so as to avoid delaying the disease.