What is the perimenopause?

Clinical Lead for Women's Health and Bupa GP
10 August 2026
Next review due August 2029

Often when people talk about ‘going through the menopause’ they’re actually talking about the perimenopause. The perimenopause is when your hormone levels start to change. But it’s before your periods stop completely. Here I’ll talk about what the perimenopause is, ways to cope with it and how to look after your body as it changes.

A woman relaxing on her sofa

When does perimenopause start?

The perimenopause is a natural stage of life. In most women it will happen between the ages of 45 and 55 and last for a few months to several years. It can even last a decade or more. During the perimenopause, your hormone levels change and your ovaries start to produce fewer eggs. Once you haven’t had a period for 12 months or more, you’ve officially reached the menopause.

Some people start experiencing the perimenopause before they are 40. This can be as a result of medical treatments, such as surgery to remove the ovaries, but sometimes there’s no cause.If you think you’re experiencing the perimenopause before you’re 40, speak to a doctor.

What are the signs of the perimenopause?

Perimenopause symptoms are caused by hormonal changes happening in your body. Some women won’t have any symptoms, but most will. For some people symptoms can be very severe and affect their daily lives. Everybody’s experience will vary, but physical perimenopause symptoms commonly include:

There are also other symptoms of the perimenopause that can affect your feelings and mental health. These include:

Managing symptoms of the perimenopause

The perimenopause is not always easy to cope with. If you’re experiencing symptoms, there are some things that you can do that may help.

There are also treatments that your doctor can prescribe to improve your quality of life. These include:

You don’t need to wait for your periods to stop before speaking to your doctor or taking HRT.

Can I still get pregnant during the perimenopause?

Pregnancy is still possible if you’re experiencing the perimenopause. However, it’s much less likely because you’re not ovulating as frequently.

If you don’t want to become pregnant, you should use contraception until your doctor says it’s safe to stop. The right contraceptive for you depends on your age, symptoms and needs. Talk to your doctor about your options.

Preparing for the menopause

Experiencing the perimenopause is a signal that your body is changing. After the menopause, you’re more likely to develop heart disease and osteoporosis than you were before. The good news is that there are some things you can do to help support your health.

  • Eat a heart healthy diet, with at least five portions of fruit and vegetables a day. Also eat plenty of fibre, and healthy fats from fish, nuts, and seeds.
  • Have two to three portions of calcium-rich foods in your daily diet, such as cheese and yoghurt. Calcium helps support your bones.
  • Consider taking a daily supplement of 10 micrograms of vitamin D to help support your bone health.
  • Do some moderate exercise for half an hour, five days a week, including strength exercises on at least two days a week.
  • Maintain a healthy weight, limit alcohol and stop smoking, as this can reduce your risk of heart disease.

If you’re experiencing menopause symptoms, you don’t have to face them alone. With a Bupa Menopause Plan, you can discuss symptoms with a specially trained GP, get a personalised care plan based around your needs with access to 24/7 support via Anytime HealthLine.

Dr Samantha Wild
Clinical Lead for Women's Health and Bupa GP

 

Co-author

Julia Ebbens, Health Content Editor at Bupa UK

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