After pregnancy, the vaginal secretions of expectant mothers will increase, so it is best to choose pure cotton underwear with good permeability, strong water absorption and soft touch during pregnancy. Such underwear will not irritate the skin and will not cause rashes and pruritus in pregnant women. In addition, the abdominal belt should be loose, and the degree of looseness is that the expectant mother will not feel cramped even in the third trimester, but the expectant mother must remember that the tightness is moderate and don't loosen easily! It is best for pregnant women's underwear to wrap the abdomen and thighs, but the specific length and thickness depend on the temperature and personal comfort. Covered underwear: this kind of underwear can protect the abdomen of pregnant women, and the belt covers the part above the navel, which has a good warm effect. In addition, the tightness can be adjusted by itself, and it can freely expand and contract with the size of expectant mothers in different pregnancy periods. Covered underwear can stretch lace waist strongly and elastically, which can make expectant mothers more comfortable to wear. This kind of underwear has styles and colors suitable for all kinds of clothes and wearing needs, such as flat mouth and gray. Maternity pants: this underwear is made of comfortable and elastic cotton, which has high elasticity and is not tight! Pants for pregnant women can be divided into two types: fixed and movable, and the bottom can be opened, which is convenient for expectant mothers to have prenatal examination and wear during puerperium and physiological period.