Pregnant women’s underarm sweat and odour will not affect the normal growth and development of the baby. After pregnancy, as the metabolism of pregnant women speeds up and the level of hormones in the body increases, the sweat glands in the armpits secrete more sweat, which can cause an odour if not washed in time. Pregnant women should pay attention to washing every day, keep the local dry, pregnant women should wear loose, breathable, cotton underwear, so that the body will not lead to the accumulation of damp heat so that the body produces eczema and so on.