how does tamoxifen affect uterus
Tamoxifen may also cause non-cancerous changes in the uterus. In some women, it may increase the risk of blood clots or endometrial cancer (cancer in the lining of the uterus). Remember that each woman's risk factors are different.
According to the American Cancer Society, the risk of developing endometrial cancer from tamoxifen is about 1 in 500 â a small risk, but higher than that for women in the general population. Tamoxifen also slightly increases the risk of uterine sarcoma, a cancer that begins in the muscle of the uterine wall.