Vaseline can be used by pregnant women. Vaseline, also known as mineral spirits, is a common emollient made from petroleum fractionation, with moisturizing effect, no special toxic effects, generally does not adversely affect the growth and development of the fetus, so Vaseline can be used by pregnant women. It should be noted that there are limited types of pure petroleum jelly skin care products on the market, most of which contain different chemical additives, and some unqualified cosmetics may contain heavy metals and other toxic and harmful substances, which should not be used by pregnant women. Pregnant women should consult a medical professional before using skin care products to avoid adverse effects on the growth and development of the fetus, leading to adverse consequences.