Perimenopause is the stretch before menopause when your hormones start winding down, and your period is usually the first thing to notice. It can begin in your late 30s or 40s and last several years. Cycles get shorter, then longer, heavier, then lighter, then start skipping. It is a normal transition, not a sign something has gone wrong, and there is plenty you can do to feel more like yourself through it.

What is perimenopause?

Peri means around, so perimenopause is the lead-up to menopause, the years when your ovaries gradually make less oestrogen and progesterone. Menopause itself is a single point in time: twelve months since your last period. Everything before that, with all its ups and downs, is perimenopause. It is a transition, not a switch, which is why it can feel so up and down.

What age does perimenopause start?

For many people it begins in their mid-40s, but it can start in the late 30s and that is still normal. Genetics, some medical treatments, and other factors can shift the timing. If your cycle and body are clearly changing and you are in this age range, perimenopause is a very reasonable explanation to raise with your GP.

What are the first signs of perimenopause?

The classic early sign is a change in your period, but it rarely travels alone. People often notice some mix of: cycles that get shorter or longer, heavier, or lighter; hot flushes or night sweats; broken sleep; mood swings, anxiety, or a shorter fuse; brain fog; lower libido; and changes in skin or energy. If several of these have crept in together, your hormones are likely the thread connecting them.

How does perimenopause change your period?

Unpredictably, which is the frustrating part. Cycles can shorten so periods come closer together, then stretch out with weeks or months in between. Flow can get much heavier, sometimes with flooding or clots, or much lighter. This is where good period underwear earns its keep, because you cannot always predict what each cycle will bring. If you are soaking through protection every hour or two, or bleeding lasts much longer than usual, get it checked. More on heavy flow.

How long does perimenopause last?

It varies a lot. For some it is a year or two, for others it stretches to eight or more, with an average of around four years. You are considered through menopause once you have gone twelve full months without a period. Until then, cycles can keep surprising you, so it pays to be prepared rather than caught out.

What helps with perimenopause symptoms?

Plenty, and it is worth being proactive rather than gritting your teeth. Options range from lifestyle support (movement, nutrition, sleep, stress) to medical routes like menopausal hormone therapy, which a GP can talk you through. For the everyday: heat helps with cramps and tension, magnesium may support sleep and mood for some people, and reliable period underwear takes the anxiety out of an unpredictable flow. You do not have to just push through.

Perimenopause vs menopause: what's the difference?

Perimenopause is the transition, the years of shifting hormones and changing periods. Menopause is the milestone, twelve months after your final period. After that, you are post-menopausal. Most of the symptoms people call menopause actually happen during perimenopause, which is why naming this stage matters.

Quick answers

Q: What are the first signs of perimenopause?
A: Usually a change in your period (shorter, longer, heavier, or lighter), plus some mix of hot flushes, broken sleep, mood swings, brain fog and lower libido. Several together point to hormonal change.

Q: What age does perimenopause start?
A: Often the mid-40s, but the late 30s is still normal. If your cycle and body are changing in this range, it is worth raising with your GP.

Q: How long does perimenopause last?
A: It varies widely, from a year or two to eight or more, averaging around four years. You have reached menopause after twelve months with no period.

Q: What helps perimenopause symptoms?
A: Lifestyle support, and medical options like menopausal hormone therapy that a GP can explain. For day to day, heat helps cramps, magnesium may help sleep and mood, and reliable period underwear handles unpredictable flow.

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