Atrophic vaginal discharge is common in post-menopausal women due to due to the falling levels of oestrogen which causes changes in the vagina. Here's your 101.
Vaginal discharge, especially with abnormal qualities or in irregular quantities, might cause a woman to become alarmed. Though vaginal discharge after menopause could be a sign of a serious issue, it's more likely that it is being caused by something less malignant.
Just a clear mucous vaginal discharge should NOT give you a scare for uterine cancer. Is there any strongly positive family history of malignancies? As you have not had a period for 1 - 1.5 years, you are technically menopausal by definition. After menopause, there could be some more common (and less dangerous!) reasons for this discharge.
Vaginal bleeding after menopause and Vaginal discharge. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms vaginal bleeding after menopause and vaginal discharge including Endometrial cancer, Foreign object in the vagina, and Uterine cancer.