The present study aimed to investigate the effects of microwaves (MW) emitted by cellular phones (CPs) on peripheral blood parameters and birth weights of rats. Thirty-six albino rats were divided into four groups, male (n = 6) and female sham-exposed groups (n = 12) and male (n = 6) and female experimental groups (n = 12). No blood parameters differed following exposure (p > 0.05). The birth weight of offspring in the experimental group was significantly lower than in the sham-exposed group (p < 0.001). No significant differences were observed between rectal temperatures of rats in the sham and experimental groups (p > 0.05). The specific absorption rate (SAR) was found to be 0.155 W/kg for the experimental groups. All parameters investigated were normal in the next generation of rats (p > 0.05).