My wife (uncertified but wanting to get certified) asked me a question relating to birth control and diving, and I have no idea how to answer her. Therefore, I'm seeking answers from the experts here. I know that DAN says that diving with an IUD poses no health risks to a woman. But in your experience (if you have it) does an IUD cause any discomfort while diving? I have to confess that in my studies of diving physiology, I haven't focused on female anatomy and don't know if pressure affects the uterus differently than the rest of the body. Your comments will help set her mind at ease about that little detail. Thanks in advance.