What is the cause of ovulation bleeding?

Ovulation bleeding is something that every female friend will experience, but in general the amount of bleeding is very small, and basically it cannot be seen with the naked eye. However, some people will experience more severe bleeding, which usually lasts for half a day or several days, and there will also be mild abdominal pain and back pain. So, what causes ovulation bleeding? Now let me tell you about it.

In fact, the main cause of ovulation bleeding is that after the mature follicle ruptures and ovulates, the estrogen level drops sharply and significantly, which cannot maintain the growth of the endometrium, causing local ulceration and shedding of the surface layer of the endometrium, resulting in breakthrough bleeding in small amounts.

Sufficient estrogen and progesterone are secreted to quickly repair the ruptured surface of the endometrium and stop the bleeding. Or it is possible that during ovulation, the mature follicles secrete more estrogen, causing endometrial congestion and leakage of red blood cells. It is also possible that when the egg is captured in the fimbria of the fallopian tube, the blood-containing follicular fluid is sent to the uterine cavity through the retrograde peristalsis of the fallopian tube and then flows out of the cervix through the vagina.

When examining the cervical mucus of women who ovulate during the mid-term period, it is found that about 60% of them have red blood cells under microscopic observation, but no bleeding can be seen with the naked eye. This is not a pathological phenomenon; but women with ovulation bleeding must rule out other reproductive tract diseases, such as irregular menstruation, cervical erosion, cervical polyps, cervical cancer, endometrial polyps, submucosal uterine fibroids, endometrial adenocarcinoma, etc.

Of course, it is also possible that the secretion of sex hormones is out of balance, causing the hormone levels to fluctuate greatly during ovulation and resulting in obvious bleeding. Chronic inflammation of the endometrium or inflammatory thickening of the ovarian surface causes significant endometrial congestion during ovulation, and bleeding is not easy to stop on its own, or the inflammatory thickened follicle surface ruptures and bleeds more than normal, and flows back into the uterine cavity with the peristalsis of the fallopian tube and is discharged from the body through the vagina.

Vaginal bleeding visible to the naked eye may last for several hours, or 3 to 5 days, but rarely for more than 7 days. In severe cases, it may continue to occur until the next menstrual period. Some women have very little bleeding, which stops with a few drops, or there is blood mixed in the vagina. Generally, it rarely reaches the amount of menstruation. Bleeding may be accompanied by distension and discomfort, dull pain or obvious pain in one side of the lower abdomen, and may even involve the waist and inner thigh. Symptoms may occur continuously every month or every other month. For some people, they occur for several months each year, while for others, they only experience this phenomenon once in their lifetime.

Generally speaking, most female friends bleed very little, in the form of drops. If the bleeding during ovulation is severe, with a large amount of blood and lasts for a long time, it may be a reproductive disease and you need to go to the hospital for examination in time. This is not a normal physiological phenomenon and requires timely medical treatment.