Clinical analysis of 4 polyneuropathies developed in pregnancy revealed that the characteristic features of the peripheral nerve lesions were their development in the presence of mildly pronounced gestosis and erythronormoblastic anemia (in all cases but one) that contradicted to the most typical descriptions in the literature. Polyneuropathic syndrome was also featured by the formation of severe indolent paralysis of extremities and manifest vegotovascular trophic lesions. Deeper sensitivity disorders failed to be revealed, whereas superficial sensitivity was compromised but insignificantly. Persistent residual paretic manifestations and acroangiodystonias were characteristic features of the performed observations.