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Navigating Early Perimenopause Symptoms at Age 40

BlogMenopause, Perimenopause

Written by

Dr Catherine Smith

Published on

January 25, 2025
Woman waving paper sheet to cool herself during hot flash on sofa at home

Ever wondered why some women face menopause symptoms in their 40s? Early perimenopause can start in your early 40s or late 30s. It’s a transition phase, marked by hormonal changes, leading to irregular periods and various symptoms.

Lets understand the difference between perimenopause and menopause. Menopause is confirmed after a year without periods, usually around 51 in the UK. Perimenopause, lasting 2 to 8 years, starts in your 40s, with estrogen levels fluctuating.

Hot flushes, night sweats, vaginal dryness, and mood swings are common. About 80% of women experience these symptoms. Reduced bone density and increased heart disease risk add to the complexity. Managing perimenopause symptoms is important to maintaining your quality of life.

Early menopause may occur between ages 38–45

The cessation of periods (menopause) under the age of 40 years is called premature ovarian insufficiency (POI).  This can be linked to genetic or autoimmune diseases or can occur with no clear reason.  It is, however, incredibly important to recognise.  POI can be associated with long-term health risks, including osteoporosis and heart disease and requires early treatment often with review by a specialist. 

Menopause occuring between the ages of 40-45 years is considered to be early menopause. Like POI it can be associated with increased risks of osteoporosis and heart disease and most women will benefit from early intervention. 

As with menopause occurring in women in the mid to late 40s and 50s women suffering from POI and early menopause can experience similar symptoms such as hot flushes, night sweats and mood change.  As we are referring to menopause you will also have noticed that your periods have ceased. 

Knowing the risk factors and early signs of premature menopause is critical for timely action. Women experiencing menopause before 40 should collaborate with their healthcare providers. They may need hormone replacement therapy and lifestyle changes to reduce health risks.

What are early menopause symptoms?

Women in their 40s may start to notice symptoms of menopause during the perimenopausal phase. Initially, many will experience irregular periods, which can range from very light to very heavy. This irregularity often marks the beginning, occurring months to years before menstrual periods stop completely.

Common symptoms include hot flushes, affecting about 75% of women. These sudden heat sensations can be distressing. They are often accompanied by night sweats, which disrupt sleep in 40-60% of women. Night sweats can then lead to daytime fatigue and irritability.

Emotional symptoms like mood swings and anxiety are also common. These changes are often triggered by hormone level fluctuations, mainly the decline in estrogen. It’s important to see these mood swings as a natural part of the menopausal transition.

Decreased fertility is another key aspect. As ovulatory cycles become erratic, the chance of natural conception drops. Women using hormonal contraception should note that menstrual changes can complicate the assessment of menopause onset. It’s generally advised to stop hormonal contraception by age 55 due to the significant drop in conception probability.

Physical symptoms go beyond hot flushes and may include joint pains, vaginal dryness, and skin changes. Many women report these issues persisting even after periods have stopped. Other common concerns are headaches, palpitations, and increased facial hair growth.

What are periods like during perimenopause?

Perimenopause brings about significant menstrual cycle changes for women. It can start as early as the mid-30s or as late as the mid-50s. On average, it lasts about four years but can extend to eight. Hormone fluctuations are a hallmark, leading to irregular periods.

Minor changes in menstrual cycle length are often the first signs of perimenopause. You might notice periods becoming shorter or longer. Irregular periods are a common indicator, caused by hormone fluctuations. For example, periods lasting more than seven days often signal early perimenopause.

It’s important to watch for abnormal bleeding patterns, particularly heavier bleeding with flooding and clots. Bleeding lasting over seven days, occurring between periods, or with a cycle interval of fewer than 21 days requires medical attention. Whilst these changes are in most cases dysfunctional uterine bleeding of menopause it is always important to seek medical help as other issues such as an under active thyroid gland or abnormal thickening of the uterus can also cause these changes. 

Treatment for early menopause

Dealing with early menopause symptoms can be tough, but hormone replacement therapy (HRT) offers a solution. HRT replenishes estrogen levels, easing symptoms like hot flushes, night sweats, and mood swings. It also lowers the risk of osteoporosis and heart disease in the long run.

Using body-identical hormones, as regulated in the UK, ensures safety and effectiveness. These hormones, similar to our body’s own, help manage symptoms. They’re also key in preventing bone loss and osteoporosis.

For those who can’t or don’t want to use HRT, other treatments exist. Non-hormonal medications, lifestyle changes, and cognitive behaviour therapies are available. These can be accessed without a GP referral.

Early menopause impacts about 5% of women under 45. Family history, early menstruation, smoking, and certain treatments like chemotherapy increase the risk. Women should consider HRT until they’re around 51 to manage symptoms effectively.

Knowing about menopause treatments and their benefits helps women make informed health choices. Whether choosing HRT or other options, a tailored plan can greatly improve life quality.

Can I get pregnant if I am in perimenopause?

Many women wonder, “Can I get pregnant if I am in perimenopause?” The truth is, while the chances decrease, it’s not impossible to conceive during this phase. Perimenopause starts in a woman’s mid-to-late 40s and can last from a few months to a decade. During this time, fertility naturally drops due to irregular ovulation.

Yet, the possibility of pregnancy during perimenopause remains as long as menstruation continues. This is because ovulation, though unpredictable, doesn’t stop right away. Hormone levels, such as estrogen and progesterone, fluctuate, causing unpredictable ovulation and irregular periods.

The onset of perimenopause often brings changes in menstrual cycle length and intensity. This makes it hard to pinpoint fertile windows. Despite a drop in fertility, women over 40 can conceive during perimenopause. Doctors advise women under 50 to use contraception for at least two years after their last period. Those over 50 should use it for one year.

It’s vital to remember that pregnancy can occur during perimenopause. Effective contraception is key until menopause is confirmed—defined as a full year without a menstrual cycle. Beyond age 55, stopping contraception is safe due to the extremely low chance of pregnancy.

What lifestyle changes can I make to manage perimenopause symptoms?

Effective lifestyle adjustments are useful to managing menopause symptoms during perimenopause. A balanced approach, including dietary changes, regular exercise, and stress management, can greatly enhance wellbeing.

Dietary changes are fundamental. A diet rich in calcium and vitamin D is essential. Daily calcium intake should be between 1,000 to 1,200 mg to support bone health and reduce osteoporosis risk by up to 60%. Vitamin D supplements can increase calcium absorption by 20-30%. Omega-3 fatty acids from fish, consumed in two weekly servings, reduce inflammation and improve mood. It’s also important to limit saturated fats and refined carbohydrates, as they increase heart disease risk.

Regular physical activity is another vital aspect. Exercise can reduce hot flashes by 30-50%. Weight-bearing exercises boost bone density by 1-3% annually. Exercise also aids in mood improvement and stress reduction, helping with 40% of women’s mood swings.

Quitting smoking is a critical change. Smoking worsens perimenopause symptoms and significantly increases osteoporosis risk. Non-smokers have a 30% lower risk of severe osteoporosis. Quitting smoking is one of the most impactful lifestyle changes.

Stress management through mindfulness and relaxation techniques is highly advised. Around 60% of women experience mood changes during perimenopause. Cognitive behavioral therapy (CBT) can reduce anxiety and low mood by 50%. Mindfulness practices support emotional wellbeing during this phase.

Lastly, tracking symptoms and identifying triggers like alcohol, coffee, or tea can help manage hot flashes affecting up to 75% of women. These lifestyle adjustments make perimenopause more comfortable and manageable.

Conclusion

Understanding perimenopause will help you to navigate its complexities. This transition period demands proactive health measures. Open dialogue with healthcare professionals preferably a menopause specialist is vital for effective symptom management, ensuring daily life remains unaffected.

Women typically notice menstrual cycle changes and physical and psychological symptoms in their 40s. Symptoms like hot flushes, night sweats, vaginal dryness, and mood swings affect 85% of women. Hot flushes, in particular, trouble one-third, lasting from one to ten years. Emotional shifts, such as anxiety and depression, also increase, impacting nearly 90% of women.

Seeking medical advice is essential for managing these changes, as almost 90% of women do. This ensures a healthier experience through menopause. By staying active, eating well, and reducing stress, we can alleviate many symptoms. Even though some women can conceive during this time, these habits improve overall well-being. With the right medical guidance and self-care, perimenopause can be more manageable, easing the transition to this new life phase.

Dr Catherine Smith

Dr Catherine Smith is the founder of The Coil Clinic. A GP and Women's Health Expert with nearly 20 years of experience. She is a BMS Certified Menopause Specialist