Vulvar lichen sclerosus is mainly caused by long-term infection and inflammatory stimulation in the perineal area, leading to changes in the local skin. It generally does not greatly affect pregnancy, and normal conception is possible. However, during pregnancy, it is important to maintain local cleanliness and hygiene, and try to avoid using medication for treatment. If treatment is needed, it must be carried out under the guidance of a doctor, using medication that has minimal impact on the baby. It is necessary to wash the vulva with clean water daily, and it’s important to enhance the body's immune resistance, strengthen nutrition, and promote the recovery of skin lesions.