Perimenopause Signs: How to Recognise the Transition Before It Has a Name

Most women can tell you what menopause is. Far fewer can describe perimenopause, the transition phase that comes first, even though it is often the more disruptive of the two. Perimenopause can begin in your early forties, sometimes late thirties, and it can last anywhere from a couple of years to close to a decade. During that time your ovaries do not switch off. They sputter. Oestrogen and progesterone rise and fall unpredictably, and it is that volatility, not the eventual decline, that drives most of the symptoms.

The signs most people know

The classic markers are the ones that make it into magazine articles, and they are real:

• Periods that change: shorter cycles, longer cycles, heavier or lighter bleeding, or skipped months
• Hot flushes and night sweats, which in a humid climate like Mauritius can be genuinely hard to distinguish from ordinary heat at first
• Sleep that becomes lighter and more fragmented, often with 3 a.m. waking
• Mood swings, irritability, or anxiety that feels out of proportion to what is happening in your life

If you have several of these and you are over 40, perimenopause belongs on your list of explanations, even if your periods still arrive on schedule.

The signs almost nobody mentions

Hormone receptors exist all over the body, so fluctuating oestrogen shows up in places that surprise people. Brain fog is one of the most common complaints: losing words mid-sentence, forgetting why you walked into a room, struggling to hold a plan in your head. Joint aches, especially in the morning, are another. So are heart palpitations, itchy or crawling skin, tinnitus, new allergies, dry eyes, thinning hair, and a change in body odour.

Because these symptoms are scattered across specialties, women often collect them one referral at a time: a cardiologist for the palpitations, a rheumatologist for the joints, a psychologist for the anxiety. Each visit can be worthwhile, but nobody joins the dots. If you are in your forties and accumulating unexplained symptoms, it is reasonable to ask whether one hormonal story ties them together.

Why blood tests often do not settle it

Many women ask for a hormone test expecting a clear answer. In perimenopause, a single blood test is often unhelpful, because your levels can look normal on Tuesday and menopausal on Friday. That is the nature of fluctuation. Guidelines in many countries advise doctors to diagnose perimenopause in women over 45 based on symptoms and cycle changes alone. Tests have more value for younger women, or to rule out look-alikes such as thyroid problems, anaemia, or iron deficiency, which are worth excluding because they are common and treatable.

Track before you consult

The most useful thing you can bring to a consultation is not a lab result but a record. For two or three months, note:

• Cycle dates, flow, and any spotting
• Sleep quality and night waking
• Hot flushes: how many per day, and what seems to trigger them
• Mood, energy, and concentration, scored simply out of ten
• Anything unusual: palpitations, aches, headaches, skin changes

A notebook or a phone note is fine. Patterns that are invisible day to day become obvious over eight weeks, and a written record makes a short appointment far more productive. In Mauritius, where a private GP consultation is brief and public clinics are busy, arriving with a clear symptom timeline changes the conversation entirely.

When to seek help sooner

Perimenopause is a natural phase, but some symptoms should never be filed under 'just hormones' without a check. See a doctor promptly for very heavy bleeding that soaks through protection hourly, bleeding after sex, cycles shorter than 21 days repeatedly, or any bleeding after 12 months without a period. These usually have benign explanations, but they deserve proper assessment.

It is also worth consulting early, rather than enduring, if symptoms are eroding your work, relationships, or mental health. Effective options exist, from lifestyle changes to hormonal and non-hormonal treatments, and you do not need to wait until your final period to use them. Understanding what is happening is the first step, and it is the reason Menopause.mu exists: midlife health, clearly explained, so you can walk into any consultation informed rather than confused.

Nothing here replaces personal medical advice. If the picture above sounds like you, book time with a doctor you trust and bring your symptom record with you.