The yellow body, also known as the yellow body, is a structure that forms shortly after the fertile period and aims to support the embryo and promote pregnancy, this because it stimulates the production of hormones that promote the thickening of the endometrium, making it adapt to the implantation of embryos in the uterus.
Yellow body formation occurs in the last phase of the menstrual cycle, known as the luteal phase, and has an average duration of 11 to 16 days, which can vary by woman and the regularity of the cycle. After this period, if there is no fertilization and/or implantation, the production of hormones by the yellow body decreases and menstruation occurs.
- However.
- If the period does not occur after 16 days.
- It is likely that there has been a pregnancy.
- It is recommended to monitor the appearance of signs and symptoms.
- Consult the gynecologist and perform a pregnancy test.
- Know the first signs and symptoms of pregnancy.
The yellow body is a structure that forms in the woman’s ovary shortly after the release of the eggs during ovulation and whose main function is to promote fertilization and implantation of the fertilized embryo in the uterus, resulting in pregnancy.
After ovulation, the yellow body continues to develop due to hormonal stimuli, mainly the hormones LH and FSH, and releases estrogen and progesterone, mainly in large quantities, which is the hormone responsible for maintaining endometrial conditions for a possible pregnancy.
The luteal phase lasts on average 11 to 16 days and if a pregnancy does not occur, the yellow body eventually degenerates and decreases in size, resulting in the hemorrhagic body and eventually a scar tissue called white body. With yellow body degeneration, estrogen and progesterone production decreases, resulting in menstruation and elimination of the endometrium lining. See more details on how the menstrual cycle works.
During pregnancy, the cells that will give birth to the embryo begin to release a hormone called human chorionic gonadotropin, hCG, which is the hormone that is detected in the urine or blood during pregnancy tests.
The hormone hCG acts similarly to LH and will stimulate the development of the yellow body, preventing it from degenerating and stimulating it to release estrogen and progesterone, which are very important hormones for maintaining endometrial conditions.
Around the seventh week of pregnancy, the placenta begins to produce progesterone and estrogen, gradually replacing the function of the yellow body and causing its degeneration around the twelfth week of pregnancy.