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What hormones are low during breastfeeding?

Understanding Hormonal Changes During Breastfeeding
Breastfeeding is a complex physiological process that involves a delicate balance of hormones, which play crucial roles in milk production and maternal health. After childbirth, significant hormonal shifts occur, particularly affecting estrogen and progesterone levels.
Low Levels of Estrogen and Progesterone
During breastfeeding, estrogen and progesterone levels drop significantly. This decline is a natural part of the postpartum process, as the body transitions from pregnancy to lactation. The placenta, which is the primary source of these hormones during pregnancy, is expelled after birth, leading to a sharp decrease in their levels. This hormonal shift is essential for initiating and maintaining breastfeeding, as it allows other hormones, specifically prolactin and oxytocin, to take precedence.
The Role of Prolactin and Oxytocin
As estrogen and progesterone levels fall, prolactin and oxytocin levels rise. Prolactin is the hormone responsible for milk production; it stimulates the mammary glands to produce milk in response to the baby’s suckling. Oxytocin, often referred to as the “love hormone,” facilitates the milk ejection reflex, allowing milk to flow from the breast when the baby suckles. This hormonal interplay not only supports breastfeeding but also fosters maternal bonding and emotional well-being.
Implications of Low Hormone Levels
The low levels of estrogen and progesterone during breastfeeding can lead to various physiological and emotional effects. For instance, many women experience symptoms akin to those of menopause, such as vaginal dryness and mood fluctuations. Additionally, the extended period of low estrogen can affect sexual desire and overall hormonal balance, which may require attention and management for some mothers.
In summary, breastfeeding is characterized by low levels of estrogen and progesterone, which are crucial for allowing prolactin and oxytocin to function effectively in milk production and ejection. Understanding these hormonal changes can help mothers navigate the postpartum period more comfortably and healthily.

What are the signs of low estrogen?

Signs of low estrogen include:

  • Dry skin.
  • Tender breasts.
  • Weak or brittle bones.
  • Trouble concentrating.
  • Moodiness and irritability.
  • Vaginal dryness or atrophy.
  • Hot flashes and night sweats.
  • Irregular periods or no periods (amenorrhea).

Will I miscarry if I stop taking progesterone?

Miscarriage after stopping progesterone IVF
Discontinuing progesterone after In Vitro Fertilization may increase the risk of miscarriage, as progesterone plays a crucial role in maintaining a conducive environment for early pregnancy development.

What are the signs of low progesterone?

Symptoms of low progesterone in people who aren’t pregnant include:

  • Irregular menstrual periods.
  • Headaches.
  • Difficulty conceiving.
  • Mood changes, anxiety or depression.
  • Trouble sleeping.
  • Hot flashes.
  • Bloating or weight gain.

What are the symptoms of low progesterone while breastfeeding?

Prolactin production suppresses ovulation, especially during the first six months after delivery, and with no ovulation progesterone production is incredibly low. Symptoms of low progesterone can include anxiety, depression, mood swings, low libido, and insomnia.

What are the symptoms of low estrogen while breastfeeding?

Estrogen: All women have low levels of estrogen for the first couple of months after giving birth. Continued breastfeeding extends this period for at least six months. For a few women, lower levels may last as long as they are nursing. Lower estrogen levels may cause vaginal dryness, tightness and tenderness.

What hormones decrease during breastfeeding?

On top of that, breastfeeding mimics menopause due to the production of the milk-producing hormone, prolactin, temporarily blocking estrogen production, which keeps your estrogen levels low (1). Decreased estrogen levels impact vaginal tissue, temporarily decreasing elasticity, blood flow, and thinning of the tissue.

What hormones are sleepy when breastfeeding?

When a baby breastfeeds, a hormone cholecystokinin (CCK) is released in both mum and baby. This hormone is sleep-inducing so you both go back to sleep more quickly. Other hormones in breastmilk also help baby to sleep. When breastfed babies sleep close to their mums, they tend to have the same sleep patterns.

How do you feel when estrogen and progesterone are low?

These hormones drive puberty, menstrual cycles, and pregnancy. They are also present in those assigned male at birth but to a lesser degree. Estrogen and progesterone imbalances can cause menstrual cycle disruptions, mood changes, hot flashes, and infertility.

How long does it take for hormones to balance after breastfeeding?

The return to pre-pregnancy hormone levels can vary greatly, but generally hormones will normalize within three to six months. If you are breastfeeding, as you wean from it, your prolactin and oxytocin levels will drop—potentially leaving you feeling sad, anxious or irritable.

Is testosterone low when breastfeeding?

“Plus, levels of testosterone are also lower in breastfeeding women,” Bartos says.

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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