In the years before menopause, women have months when they don't ovulate. This can cause abnormal uterine bleeding. This thickening can be a warning of uterine cancer. In women in their 40s and early 50s, it's important to make sure uterine cancer isn't the cause of abnormal bleeding. Other causes include a thickened endometrium and uterine cancer.
Uterine cancer is more common in older women than in younger women.
But cancer is not always the cause of abnormal uterine bleeding. Many other problems can cause bleeding after menopause. The tests your doctor orders may depend on your age. If you could be pregnant, your doctor may order a pregnancy test. An ultrasound exam of your uterus shows both the uterus and the ovaries.