What Are The Phases Of Menstrual Cycle – There are many reasons why you might be interested in learning more about your menstrual cycle. Maybe you recently started your period or are in the process of choosing a birth control method. You may experience changes in your cycle and you want to better understand why.

Regardless of the reason, this cycle (or repetition of events) is a part of you and your daily life. There is increased freedom when you better understand your menstrual cycle. You have greater control over the prevention of pregnancy, pregnancy, and in your general experience of health and your daily activities.

What Are The Phases Of Menstrual Cycle

What Are The Phases Of Menstrual Cycle

The menstrual cycle is more than just the period. It is a chain of activities in the brain, ovaries and uterus linked

Understanding The Four Phases Of The Menstrual Cycle

; the chemical signals sent by the blood from one part of the body to another (1). The cycle is divided into two smaller cycles: the uterine cycle and the ovarian cycle (1).

, in other words different stages (1). Different events occur in each phase. There are three phases in the uterine cycle: menstruation

Proliferative phase, and secretory (before menstruation bleeding) (1). There are also three phases in the ovarian cycle: follicular (before ovulation), ovulation

The menstrual cycle is not always perfectly predictable (1). The length of menstrual cycles can vary from cycle to cycle (1, 2). Even in people with fairly predictable periods, ovulation may not happen on the exact same day each cycle (3). This can make it difficult to predict (1).

The Menstrual Cycle

) (1). Anovulation occurs more often in the first years of menstruation and when your cycle comes to an end in (peri)menopause (1). It can also happen during breastfeeding or with certain conditions, such as polycystic ovarian syndrome (PCOS) (1, 4). Sometimes ovulation may not occur, but a regular period may still occur and there is no known cause (4).

The menstrual cycle is a very sophisticated process; it can often feel very complex. To simplify this topic, we will talk about what happens in a menstrual cycle in a linear way, assuming that ovulation happens, but every body is unique. There isn’t really a “typical” menstrual cycle.

A menstrual cycle begins on the first day of menstruation and ends at the beginning of the next period. An entire menstrual cycle usually lasts between 24 and 38 days (2), but menstrual cycles can vary from person to person, cycle to cycle, and can also change over the years.

What Are The Phases Of Menstrual Cycle

Cycle lengths change between menarche (when periods first start at puberty) and menopause (when periods stop permanently) (5, 6).

Phases Of The Menstrual Cycle Explained Complete Video

Some people notice changes in their hair, skin, poop, chronic disease symptoms, mood, migraine headaches, or even in the way they experience sex at different points in the menstrual cycle.

Understanding the menstrual cycle is important because it can affect the body from head to toe. People use different methods of cycle tracking to understand their experiences, understand pregnancy and prevent pregnancy. Hormonal methods of birth control affect the cycle by preventing ovulation, changing the lining of the uterus, or both. Before ovulation 1. Uterine Cycle:

What: Blood from the previous cycle  from inside the uterus is shed through the cervix and vagina. The uterine lining, called the

, is the thinnest in this phase. A typical period can last up to 8 days (2), but on average lasts about five or six (7).

Ischemic Phase Of The Menstrual Cycle

Hormones: levels of estrogen and progesterone are typically at their lowest. This causes the upper layers of the lining to loosen and leave the body.

What: Proliferative means growing quickly. The uterus builds up a thick inner lining while the ovaries make eggs for release (oocytes) (8)

(Liquid-filled sacs with eggs) at different stages of development in both ovaries (10, 11). The period ends about halfway through this phase. One follicle in one of the ovaries becomes the largest of all follicles. It’s called the

What Are The Phases Of Menstrual Cycle

And is about the size of a grain of sand (1-2 cm or 0.4-.8 in) (11, 12). This follicle is the one that is ready to be released during ovulation. For most people, the follicular phase lasts 10-22 days, but this can vary from cycle to cycle (7).

Menstrual Cycle Stages: Phase By Phase

(FSH). FSH tells the ovaries to produce an egg for ovulation (release of an egg from the ovary). The dominant follicle produces estrogen as it grows (13), which peaks just before ovulation occurs (12).

When: About halfway through the menstrual cycle, or 13 to 15 days before the start of the next period (14). This can change cycle-to-cycle. Ovulation divides the follicular and the luteal phase of the ovarian cycle as well as the proliferative and secretory phases of the uterine cycle).

What: The dominant follicle reaches about 2 cm (0.8 in). When it ruptures, an egg leaves the ovary and enters the fallopian tube (10, 12). The release of an egg from an ovary is called ovulation.

Hormones: The dominant follicle in the ovary produces more and more estrogen as it gets bigger. When estrogen levels are high enough, they send a signal to the brain. The brain then causes a dramatic increase of

Understanding Your Menstrual Cycle

(LH) (9). This spike is what causes the release of the egg (1). Estrogen levels drop immediately after ovulation (1).

(uterine lining) prepares to support a pregnancy or break it before menstruation. The cells of the lining make and release many types of chemicals.

”, causing the uterine muscle to spasm. These hormones increase after ovulation and are highest during a period (15, 16). Cramping helps to start the period. Blood vessels shrink and the uterine lining breaks down (9). The uterine cells produce less of these chemicals when pregnancy occurs (17).

What Are The Phases Of Menstrual Cycle

When: From ovulation to the start of the next period. The luteal phase lasts about 14 days, but between 9 and 16 days is common (7, 14).

What Is Cycle Syncing?

(9, 18). It makes the hormones progesterone and estrogen to support pregnancy. (9, 18). If pregnancy does not occur, the corpus luteum ruptures between 9 and 11 days after ovulation (9).

Hormones: Progesterone supports early pregnancy when an egg and sperm connect (19). If pregnancy does not occur, progesterone will peak and then fall (20). These hormonal changes can contribute to common premenstrual symptoms. Common symptoms include mood changes, headaches, acne, bloating, and breast tenderness. A drop in progesterone and estrogen causes menstruation.

Understanding your menstrual cycle and rhythm increases the overall understanding of your body. This can guide you in using hormonal and non-hormonal birth control. Download Clue to track your period.

Endometriosis is a leading cause of pelvic pain, and painful sex – up to 1 in 10 women of reproductive age can…

Menstrual Cycle 101 — Gina Nelson Md, Obstetrics And Gynecology

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Menstrual cycle, recurring fluctuations in hormone levels that produce physical changes in the uterus and ovary to prepare the female body for pregnancy. In adult women, the menstrual cycle lasts anywhere from 21 to 40 days, with an average of 28 days. The cycle repeats until menopause, or about age 50, at which time the ovaries cease to function, ending a woman’s reproductive life. The menstrual cycle is marked by two events: ovulation and menstruation.

What Are The Phases Of Menstrual Cycle

The normal human menstrual cycle is 28 days, but no woman is always exactly regular, and cycles as short as 21 days or as long as 40 days are not abnormal. It is customary to call the first day of menstruation the first day of the cycle, although menstruation is the end rather than the beginning of a process. On this basis, the cycle is described as starting with about five days of menstruation, followed by a proliferative phase that lasts until about the 14th day, and then a secretory phase that lasts until the next menstruation. The external manifestation of menstruation depends on the cyclical change in the lining of the uterus. The lining, called endometrium, consists of tubular glands that open into the uterine cavity. The glands lie in a vascular framework, or stroma, and are thus separated.

Menstrual Hygiene Management

At the end of menstruation, just at the beginning of the proliferative phase, the endometrium is thin, with short, straight glands, and the egg is quiescent. Under the influence of the gonadotropic hormones from the pituitary gland, an egg follicle (occasionally more than one) matures in one of the ovaries. This ovarian follicle contains the ovum, which is a cell about 0.14 millimeters (0.006 inches) in diameter, surrounded by a group of smaller cells, called granulosa cells. The granulosa cells multiply, with the egg in the wall of the round structure they form, and secrete an estrogenic hormone, estradiol (

Hormone). This hormone causes proliferative changes in the endometrium, ie

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