Gray nails in pregnant women usually do not affect the fetus. Gray nails in pregnant women are a fungal infection and if they are not too severe, they usually do not need to be treated and can be treated after the baby is born. If it is very serious, you will need to treat it first. If it is just a gray nail and not complicated by other fungal infections, it can only be considered mild. If the gray nails are complicated by fungal infections of the hands, feet and pubic area, it is more serious. If this is the case, you should use the medication properly and treat it actively under the guidance of your doctor. Especially if it is complicated by mycosis fungoides, it must be treated actively by late pregnancy, not ignoring it, paying attention not to eat spicy diet, not to eat too sweet diet, not to eat raw and cold diet.