Serious complications of lichen sclerosus are rare.
If it affects the genitals, you might be slightly more likely to get a skin cancer called squamous cell cancer.
Women who have it are also at slightly higher risk for vulvar cancer, which is cancer that affects the outer part of the genitals, called the vulva. It can also change the way your genitals look.
Some women may have ongoing pain in the vulva or a narrowing of the vaginal opening. These complications can make sex difficult.