Which of the following is a contributing factor to infertility?

Uterine displacement can indeed play a role in infertility, but the intricacies of reproductive health are such that certain conditions are more commonly recognized as significant contributors. Polycystic ovary syndrome (PCOS), for example, is a well-documented hormonal disorder that can impact ovulation and is one of the leading causes of infertility in women. As for cervical cancer, it can affect fertility through various means, such as treatment options (like surgery or radiation) that may compromise the reproductive organs. Vaginal infections can lead to complications that might affect fertility as well.

While uterine displacement may create challenges for conception or pregnancy, it is generally not seen as a primary factor in infertility compared to these other significant conditions. Thus, while it is a factor, it may not be as substantial as the others listed, which have more direct implications on a woman's ability to conceive.