What There Is To Know

The menstrual cycle: the luteal phase

The luteal phase is the second part of the menstrual cycle. It is after ovulation:

A follicle breaks and changes into a "yellow body". The corpus luteum, in addition to estrogens, will secrete progesterone that prepares the endometrium for eventual implantation of the embryo. If there is no fertilization, the corpus luteum will disappear after 12 days.

Under the influence of progesterone, the lining of the uterus is transformed and thickened to receive the egg in case of fertilization.

At the 28th day of the cycle, the uterine lining reaches the thickness of 5 mm.

Without fertilization, the lining of the uterus is gradually destroyed: these are the rules.

To learn more : read also our file devoted entirely to the luteal phase

The rules in three questions

What are they due to?

The rules are due to a drop in hormone levels released by the ovaries, which triggers the detachment of the uterine lining (endometrium) and blood flow if there has been no fertilization. This fall of the superficial part of the endometrium is due to a rhythmic contraction of the arteries, which leads to the destruction of the tissue.

How long do they last?

The duration of the rules varies from woman to woman and depending on the circumstances. In general, they last between two and eight days, on average five days.

The rules when you take the pill ...

Bleeding that occurs during the cessation of the pill (estrogen-progestative contraception) is not related to physiological menstruation. It is actually a genital hemorrhage caused by the sudden fall of hormones in the blood. These are not "true rules" because the ovary has not really worked.

To learn more, read also our complete file: the rules (menstruation)

In video: Bleeding between the rules, it's serious?

More or less abundant bleeding between two menstrual cycles can have different origins. The gyngecologist's explanations on video ...

You want to react, to give your testimony or to ask a question? Go to our FORUMS Gynecology, Ovulation or A doctor answers you !

Read also :

> Symptoms of Menopause: Homeopathy Can Help
> Self-massage to relieve painful menstruation
> Premenstrual syndrome (PMS): symptoms and solutions
> Bad before the rules: why and what to do?
> Endometriosis: is it dangerous?

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