Uterine fibroidsThese non-cancerous tumors of the uterus may alter the blood flow to the endometrium by pressing on vital circulatory avenues that supply the endometrium with blood flow. High-stress levels can stimulate the sympathetic nervous system to cause arterial constriction, reducing blood flow to the uterus. In some women, repeated use of Clomid has been shown to cause a thin uterine lining. Long-term birth control use containing progestinLong-term use of oral contraceptives containing higher amounts of progestin has a link to thinning of the uterine lining and uterine atrophy. If you are going for IUI or IVF and the uterine lining is not thick enough, those procedures are canceled.

Source: Punch July 30, 2020 23:15 UTC