Infertility cannot be universally treated; it requires a specific analysis of each case. For instance, infertility caused by congenital factors, like congenital absence of testicles or uterus, is often difficult to treat. However, infertility resulting from acquired causes, such as sexual dysfunction, abnormal male semen, uterine fibroids, or ovarian cysts in females, can often be treated with medication, surgery, or assisted reproductive technologies like in-vitro fertilization, and in many cases can be cured.