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Why does menstruation stop during lactation?

Understanding Menstruation and Lactation
Menstruation, the monthly shedding of the uterine lining, often takes a backseat during lactation, a phenomenon that many new mothers experience. This interruption in the menstrual cycle is primarily influenced by hormonal changes that occur during breastfeeding.
The Role of Prolactin
At the heart of this hormonal interplay is prolactin, a hormone produced by the pituitary gland that is crucial for milk production. During pregnancy, prolactin levels rise significantly, and they remain elevated during lactation. This sustained elevation is essential for breastfeeding, as it not only stimulates milk production but also plays a critical role in suppressing ovulation and menstruation.
When a mother breastfeeds, especially in the early months, the act of suckling triggers additional spikes in prolactin levels. These spikes occur during and after feeding sessions, further enhancing the hormone’s suppressive effects on the reproductive hormones that regulate the menstrual cycle. Specifically, prolactin reduces the levels of luteinizing hormone (LH), which is necessary for ovulation to occur.
Lactational Amenorrhea
This phenomenon of menstruation cessation during breastfeeding is known as lactational amenorrhea. It serves an evolutionary purpose, allowing mothers to space out pregnancies and focus on nurturing their newborns without the complications of menstruation. The duration of lactational amenorrhea can vary widely among women, influenced by factors such as the frequency and exclusivity of breastfeeding. Mothers who breastfeed exclusively, both day and night, are more likely to experience a longer delay in the return of their menstrual cycles.
Variability Among Women
It’s important to note that the experience of lactational amenorrhea is not uniform. Some women may find that their periods return sooner, while others may not menstruate for many months or even years, depending on their breastfeeding practices and individual hormonal responses. Additionally, as breastfeeding patterns change—such as when a mother begins to introduce solid foods or reduces the frequency of nursing—prolactin levels may decrease, potentially leading to the return of menstruation.
Conclusion
In summary, the cessation of menstruation during lactation is primarily due to the elevated levels of prolactin, which inhibit ovulation and the menstrual cycle. This natural process not only supports breastfeeding but also plays a role in maternal health and family planning. As each woman’s body responds differently to breastfeeding, the timing of the return of menstruation can vary, reflecting the complex interplay of hormones and individual circumstances.

Why there is no menstruation during lactation?

Lactational amenorrhea is caused due to disruption of the secretion of gonadotropin-releasing hormone (GnRH) from the hypothalamus. Suckling during lactation reduces GnRH secretion, which leads to a decrease in the levels of LH secreted from the pituitary and estrogen levels.

Is breast milk healthy for my husband?

However, drinking breast milk is safe only if it is from your partner whom you know well. This is because breast milk is a bodily fluid, and you do not want yourself to be at risk of infectious diseases such as cytomegalovirus, hepatitis B and C, human immunodeficiency virus, or syphilis.

Why does your period stop when breastfeeding?

This is because breastfeeding hormones can stop you from ovulating (releasing an egg) each month. The time it takes for a woman’s periods to return when she is breastfeeding can vary widely – from as early as 3 months after the birth to over 2 years.

Can my period skip while breastfeeding?

Breastfeeding can suppress your period, depending on how frequently you are nursing. You may get a period while breastfeeding, and then not have another one for several months or more, particularly if your baby is nursing exclusively.

Can breast milk stop your period?

New or first-time mothers have many questions about their bodies. One is whether they will have their period while breastfeeding. If you choose to breastfeed your child, it can delay your period after birth. However, this is not always the case, as some mothers may have irregular periods.

Is it normal to have a phantom period while breastfeeding?

If you begin menstruating again while you’re breastfeeding, you may experience spotting and irregular periods and wonder what’s going on. It’s completely normal to have inconsistent cycles when you’re breastfeeding a baby, and you can chalk it up to the same hormones that caused amenorrhea.

Is it normal to not get your period back while breastfeeding?

It’s not unusual to skip a period, or even for it to be a few months before your next one. When you start reducing the amount of time you spend breastfeeding, your periods should start to return to their usual routine. You should talk to your doctor about your periods if you are having: changes in their usual pattern.

How does breastfeeding prevent bleeding?

Nipple stimulation or breastfeeding are stimuli that can lead to the secretion of oxytocin and consequent uterine contractions. Consequently, uterine contractions can reduce bleeding during the third stage of labour.

Why don’t you bleed when breastfeeding?

Breastfeeding releases oxytocin, which causes more cramping. While this ultimately leads to less bleeding, you may notice more cramping or bleeding while you breastfeed or just after. Breastfeeding can also cause a delay of your first period after giving birth.

When you stop breastfeeding what happens to your period?

Irregular periods are totally normal for a while, and having a late (or even missed) period isn’t unusual. Not to worry. Your periods will become more regular after a few months. Some women also find that their periods after weaning—and after pregnancy in general—are more intense.

Natasha Lunn

Tash is an IBCLC and Business Coach helping fellow IBCLCs create fun, profitable businesses that are more than just an expensive hobby. Before becoming an IBCLC and starting her private practice - The Boobala, Tash graduated as an Osteopath in 2008 and has been in Private Practice in South West Sydney. She was also a volunteer Breastfeeding Counsellor and Community Educator with the Australian Breastfeeding Association for 6 years. Through her business, Your Lactation Biz, Tash coaches and creates products to help new and seasoned IBCLCs build businesses that suit their personality and lifestyle.

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