If the left lower abdomen pain during ovulation, it may be the left ovary ovulation, because after ovulation ovary localization will form the corpus luteum, the corpus luteum has a certain pressure, the individual relatively sensitive women will feel the pain, so it will feel ovulation this side of the ovary pain, the vast majority of the rest after the pain will be reduced. In addition to cause the left side of the lower abdomen in the time of ovulation pain, may also be the opposite side of the adnexa have inflammation caused by the ovulation in the ovulation period after ovulation will have follicular fluid, flow to the uterorectal fossa on the pelvic tissues to produce the corresponding stimulation. If the left adnexa ever has inflammation, it will cause localized pain sensation, if necessary, do gynecological examination to exclude the inflammation of the adnexa, if there is inflammation, give timely treatment.