An anteverted uterus leans forward toward the belly and over the bladder rather than mid-position or tilted toward the back. An anteverted uterus is considered to be in a normal position, according to BabyCenter, and it does not affect conception or pregnancy. Two out of three women with a tilted uterus have an anteverted uterus, notes Women's Health.
The position of the uterus may change due to conditions such as pelvic inflammatory disease, endometriosis, adenomyosis, uterine fibroid tumors, surgery, pregnancy and aging, according to Women's Health, but normal life, including sex, does not change its position. A uterus that tilts toward the back is called a retroverted uterus. BabyCenter notes that this position is not considered an abnormality since it describes the position of the uterus rather than its structure.
A retroverted uterus can make sex uncomfortable or painful, and it can cause back pain during intercourse and minor incontinence, urinary tract infections, pain during menstruation called dysmenorrhea and difficulty using tampons, according to Women's Health. However, some women with a retroverted uterus do not experience any symptoms at all. A retroverted uterus is likely to move into the middle position by 10 to 12 weeks of a woman's pregnancy.