The success rate of in vitro fertilization (IVF) can vary widely depending on several factors, including the patient's age, the cause of infertility, and the quality of the embryos. In general, the overall success rate of IVF is about 35% for women under the age of 35, declining to about 10-20% for women over the age of 40. However, it is important to note that these are just estimates, and the actual success rate can vary widely from one patient to another. As for the risks involved in IVF treatment, they are generally minimal and most patients do not experience any serious complications. Some common side effects of IVF may include bloating, cramping, breast tenderness, and mood changes. More serious risks, such as bleeding or infection, are rare but can occur. Additionally, there is a small risk of multiple pregnancies, which can pose additional health risks for both the mother and the babies.