The redness of the palms of the hands during the 27th week of pregnancy may be caused by increased hormone levels in the body, skin allergies, eczema and other reasons. 1. Increased hormone levels: the hormone levels in the body will change after pregnancy, increased basal metabolism and exuberant secretion, some pregnant women may appear hot, red palms. 2. Skin allergies: pregnant women exposed to some allergic substances, such as pollen, mites, animal hair, the palms of the local blood vessels in the inflammation of oozing, edema, may be 27 weeks pregnant palms redness. 3. Eczema: Pregnant women are affected by the increase in hormones in the body, so that the sweat glands, sebaceous glands of hyperfunction, there is a performance of sweating, sweating will be itchy, eczema of the skin will be the case of redness of the palms. There are more reasons for the redness of the palms of the hands in 27 weeks of pregnancy, and it is recommended to seek timely medical treatment for serious cases.