The Breast Pain & Prolactin Connection: What You Need to Know
Megan Haralampou 2 min read

The Breast Pain & Prolactin Connection: What You Need to Know

If you struggle with breast tenderness before your period, you’re not alone, I see countless women in my practice who struggle with this common hormonal complaint. But did you know that high prolactin could be the reason behind your discomfort?

What is Prolactin?

Prolactin is a hormone produced by the pituitary gland that plays a key role in breast development, lactation, and hormone balance. While it’s essential during pregnancy and breastfeeding, elevated prolactin outside of these times can cause unwanted symptoms—including breast pain, irregular cycles, and even fertility issues.

What Causes High Prolactin?

Several factors can lead to excess prolactin, including:

  • Stress – High cortisol can trigger prolactin release, disrupting your cycle.

  • High Oestrogen – Oestrogen and prolactin are closely linked, and excess oestrogen can push prolactin higher.

  • Thyroid Imbalances – Low thyroid function (hypothyroidism) can lead to increased prolactin levels.

When to Test Prolactin

To get the most accurate prolactin reading, it’s best to test on day 1 or 2 of your cycle—this is when estrogen is at its lowest, so it won’t influence prolactin levels. Testing outside of this window can lead to misleading results.

How to Naturally Lower Prolactin

If prolactin is behind your breast pain, irregular cycles, or fertility concerns, here are some natural ways to bring it back into balance:

✔️ Vitamin B6 – A key nutrient for hormone regulation that can help lower prolactin.

✔️ Chaste Tree (Vitex) – This powerful herb supports cycle regularity and reduces prolactin levels.

✔️ Stress Reduction – Managing stress with breathwork, meditation, or gentle movement can help keep cortisol (and prolactin) in check.

✔️ Thyroid Support – If you suspect a thyroid imbalance, getting a full thyroid panel (TSH, T3, T4, and antibodies) can help determine if this is a contributing factor.

When to Investigate Further

If your prolactin levels are greater than 750 mIU/L, it’s important to investigate further. High prolactin levels warrant a brain MRI to check for a benign pituitary tumour (prolactinoma), which can cause excessive prolactin production.

If breast pain is affecting your comfort, mood, or quality of life, addressing hormones like prolactin could make all the difference.

Much Love,

Megan

Back to the blog