What hormone is lacking in perimenopause?

Perimenopause is the time in a woman’s life as her body draws closer to the menopause. It manifests as irregular menstruation as a woman’s ovary functions decline over time.

Perimenopause and its symptoms can vary from woman to woman and on average will last for three to five years. While that’s the average, it is by no means a rule of thumb; some women report their perimenopause lasting 3 months, while others experience perimenopause for 10 years. These symptoms may look like heavy periods or hot flashes, but some women also don’t report any symptoms at all.

But what hormone is lacking during the perimenopause, and why is it different for every woman?

As the ovaries decline in function, the hormone they make known as estrogen will rise and fall, leading to a variety of symptoms since the body is consistently changing, causing irregular periods, trouble sleeping, and low moods. Other hormones gradually decline towards the menopause, including progesterone and testosterone, while DHEA declines rapidly from one’s last regular period.

There are as many as 13 million women in the UK experiencing the perimenopause, each experiencing it differently from the next. Most commonly, a woman will experience hot flashes, also known as vasomotor symptoms, that can vary in intensity.

As seen in the graph below, perimenopause sees a drop in many important hormones up until a woman’s final period.

Once she’s experienced a full year without menstruating, a woman is no longer in the perimenopause but has reached menopause. Despite the symptoms being very similar, most doctors do not treat perimenopause symptoms.

What are the main symptoms of perimenopause?

Just like the menopause, symptoms of perimenopause stem from irregular levels of estrogen. These symptoms include:

  • Hot flashes
  • Vaginal dryness
  • Night sweats
  • Irritability
  • Low moods
  • Troubles with concentration

Here at Bodyline Clinic, we don’t want women jumping through hoops to improve their life quality and prevent their debilitating perimenopause symptoms. That’s why we offer treatments at all stages of the change.

We provide bespoke personalised Hormone Replacement Therapy treatments titrated to your needs, based on a blood analysis and your personal symptoms. Our M Plan is tailored to you, providing relief from symptoms from perimenopause to the menopause and beyond.

Get in touch for a consultation today by calling 0800 995 6036 or filling in our online contact form for a call back.

Find out more about HRT through our Wellness Blog, where we answer all your burning questions about menopause, perimenopause, and wellness.


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Are you experiencing menopausal symptoms and looking for specialized support and treatment options? So many women are the same due to frustrating wait times in getting help through GPs, and feeling as though they are jumping through hoops for a simple HRT prescription.


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