Reviewed by Dr. Scott Maymon, ND, NPH

Reading time: five minutes

Many women in their early 40s begin noticing subtle changes in their bodies and may wonder: Am I in perimenopause? Hormone levels begin shifting several years before menopause, and these changes can lead to a variety of symptoms.

When Does Perimenopause Begin?

Perimenopause is the transition phase leading up to menopause. It typically begins in a woman’s early to mid-40s, though some women notice changes as early as their late 30s.

During this time, the ovaries gradually produce less estrogen and progesterone, and hormone levels may fluctuate from month to month. These shifts contribute to many of the symptoms associated with the menopause transition.

If you are wondering whether the changes you are experiencing may be related to hormone fluctuations, you can also take our perimenopause quiz to evaluate common symptoms associated with this stage of life.

Common Early Signs and Symptoms of Perimenopause

Hormonal changes during perimenopause can affect many systems in the body. Some women experience only a few mild symptoms, while others notice several changes at once.

1. Irregular Menstrual Cycles

Changes in menstrual patterns are often the earliest sign of perimenopause. 

Periods may become:

  • Shorter or longer than usual
  • Heavier or lighter
  • Closer together or further apart

Hormonal fluctuations can disrupt ovulation, which affects the timing and flow of menstrual cycles.

2. Hot Flashes

Hot flashes are sudden sensations of warmth that spread through the upper body, often affecting the face, neck, and chest.

They may be accompanied by:

  • Sweating
  • Flushing
  • Chills after the episode

Some women experience occasional hot flashes, while others notice them frequently.

3. Night Sweats

Night sweats are hot flashes that occur during sleep. They may lead to excessive sweating and interrupted sleep.

Frequent nighttime awakenings can contribute to fatigue and difficulty concentrating during the day.

4. Sleep Disruption

Hormonal fluctuations can affect sleep patterns even without night sweats.

Women may notice:

  • Difficulty falling asleep
  • Waking during the night
  • Waking earlier than usual

Changes in estrogen and progesterone influence sleep regulation and temperature control.

5. Mood Changes

Fluctuating hormone levels can influence neurotransmitters in the brain that affect mood.

Possible effects include:

  • Irritability
  • Increased emotional sensitivity
  • Mood swings
  • Anxiety or low mood

These changes can appear gradually during the menopause transition.

6. Brain Fog or Difficulty Concentrating

Many women describe cognitive changes during perimenopause.

This may include:

  • Difficulty concentrating
  • Mild forgetfulness
  • Slower recall of information

These symptoms are often temporary and linked to hormone fluctuations, sleep disruption, and stress.

7. Vaginal Dryness

Declining estrogen levels affect vaginal tissue and natural lubrication.

Common changes include:

  • Dryness or irritation
  • Discomfort during intimacy
  • Increased sensitivity in the vaginal area

These changes can develop gradually.

8. Changes in Libido

Hormonal shifts, sleep changes, and mood fluctuations can influence sexual desire. Some women notice a decrease in libido during perimenopause, while others experience little change.

9. Weight Gain and Body Composition Changes

Metabolism tends to shift during the menopause transition. Many women notice weight gain, particularly around the abdomen. Hormonal changes can also influence how the body stores fat and maintains muscle mass.

10. Hair and Skin Changes

Estrogen supports skin elasticity and hair growth. 

As levels fluctuate, women may notice:

  • Thinning hair
  • Dry skin
  • Changes in skin texture

These changes are common during the perimenopause years.

Why Perimenopause Symptoms Can Vary So Much

Perimenopause does not affect every woman in the same way. Some women experience only mild symptoms, while others notice more pronounced changes.

Several factors can influence how the transition feels, including:

  • Genetics
  • Stress levels
  • Sleep quality
  • Metabolic health
  • Lifestyle factors such as diet and activity

Hormones interact with many systems in the body. As levels fluctuate, symptoms may appear and disappear over time rather than remain constant.

Perimenopause Support at Pure Body Health

At Pure Body Health in Tempe, Dr. Scott Maymon, ND, MPH, and Dr. Sarah Stone, ND, support women experiencing hormonal changes during perimenopause with individualized hormone-optimization treatments.

The process begins with a comprehensive hormone evaluation that includes symptom review, medical history, and laboratory testing to understand how hormonal shifts may be affecting sleep, mood, metabolism, and overall well-being.

Treatments are personalized and suited to your unique hormone levels, symptoms, and overall health goals.

Schedule a Perimenopause Consultation in Tempe, AZ

To book an appointment at our wellness clinic in Tempe, AZ, call (480) 427-0442 or complete the online inquiry form. Visit us at 1553 W Todd Drive, Suite 106, Tempe, AZ.

FAQs

Is nausea a symptom of perimenopause?

Nausea is not one of the most common perimenopause symptoms, but some women report occasional nausea during hormone fluctuations. Hormonal changes can affect digestion and the nervous system, which may contribute to this symptom in some cases.

Is dizziness a symptom of perimenopause?

Some women experience dizziness or lightheadedness during perimenopause. Hormonal fluctuations can affect blood pressure regulation, sleep quality, and the nervous system, which may contribute to this sensation.

How long does perimenopause usually last?

Perimenopause can last several months to more than eight years. For many women, it begins in the early to mid-40s and continues until menopause occurs, which is defined as 12 months without a menstrual cycle.

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