Intrauterine Insemination (IUI) and In Vitro Fertilization (IVF) are common fertility treatments, but their pain levels differ due to procedural variations. IUI is generally less invasive and less painful. It involves inserting sperm directly into the uterus via a thin catheter, often described as mild cramping similar to menstrual pain. https://janchkendra.com/which-is-more-painful-iui-or-ivf/