There are a number of things that can cause vaginal dryness, other than vaginal atrophy.
As well as menopause, breastfeeding and cancer treatments, vaginal dryness may be caused by certain medications (including birth control pills and antidepressants), a hysterectomy (an operation to remove the uterus) or an underlying medical condition, such as diabetes.
You may also experience vaginal dryness if you are not sufficiently aroused during sex, which may lead to pain during intercourse.
If you use performed soaps, deodorants or douches in and around your vagina, you may find that this causes vagina dryness.