Kidney cysts do not affect sex life, kidney cysts are actually sacs in the kidneys, inside the sac is a cavity with fluid, many of which are actually urine. Kidney cysts have no symptoms, of course if the kidney cyst is particularly large, the increased pressure inside the sac may cause back pain, infection, hematuria, etc., but it does not affect sex life. There are many reasons that affect sex life, mainly due to physical or psychological factors, many people may have anxiety, fear, tension, these will affect sex life or sexual function. Overall, kidney cysts do not affect sex life and have no direct relationship with sex life.