If the stomach has been bloated after ovulation, and back pain, the most common reason is the formation of corpus luteum in the ovary after ovulation, and there is pressure in the corpus luteum, most of the corpus luteum after ovulation will be more or less a small amount of bleeding, bleeding relatively more cases caused by the corpus luteum internal pressure increases, there will be a pain in the lower abdomen bloated, and there will be back pain, which is a normal phenomenon in the clinic. This is a normal phenomenon, most of the pain will disappear after 24 hours of rest. If you experience bloating and lumbago after ovulation, it may be caused by pelvic inflammatory disease. When the follicular fluid flows into the uterorectal fossa, it will cause the original pelvic cavity to become more congested, which will result in bloating and lumbago. Therefore, if you feel pain in the lower abdomen in your daily life, go to the hospital for examination and timely treatment if you have pelvic inflammation.