A normal blood test does not rule out perimenopause. Hormone levels rise and fall from day to day in the years before menopause, so a single test can easily look normal. For women over 45, NHS and NICE guidance says perimenopause should usually be recognised from your symptoms and periods, without the need for a hormone blood test.
If you are looking for perimenopause help in Birmingham and have been told your results are fine, this guide explains what a doctor looks at instead. It is part of our women’s health service.
Why can blood tests look normal in perimenopause?
Perimenopause is the stage before your periods stop for good. It often starts in your 40s and can last several years. During this time, the ovaries do not wind down smoothly. Hormone levels can swing from high to low within the same month.
The test most often used is follicle stimulating hormone (FSH). A raised FSH can suggest perimenopause, but a normal result on one day tells you very little about the next. Hormone levels can also be affected by some types of contraception, which makes results harder to interpret.
That is why, for women over 45 with typical symptoms, NICE advises against routine hormone testing. The diagnosis is made by listening.
When are blood tests useful?
Tests still have a place, just a different one:
- Between 40 and 45, an FSH test may be considered alongside your symptoms.
- Under 40, symptoms of menopause need proper assessment, including repeated hormone tests, to check for premature ovarian insufficiency. This matters for long-term bone and heart health.
- To rule out other causes, such as an underactive or overactive thyroid, anaemia or diabetes, where your symptoms suggest them.
What symptoms point to perimenopause?
Symptoms vary widely, and not everyone has hot flushes. Common ones include:
- changes to your periods: closer together, further apart, heavier or lighter
- hot flushes and night sweats
- poor sleep, often waking in the early hours
- low mood, anxiety, irritability or feeling unlike yourself
- difficulty concentrating or remembering words
- joint and muscle aches
- vaginal dryness, discomfort during sex or more frequent urine infections
- lower sex drive
Many of these overlap with other conditions, which is why a doctor will ask about your whole health, not just your hormones. If urine infections are part of the picture, see recurrent UTIs: why they keep coming back.
What can help?
Treatment depends on your symptoms, your medical history and what matters most to you.
Hormone therapy options
For many women, hormone therapy is the most effective treatment for hot flushes, night sweats and several other symptoms. The benefits and risks are different for each person, depending on age, personal and family history and the type of treatment. A doctor can talk through these honestly with you.
Treatments for local symptoms
Vaginal dryness and discomfort often respond well to local treatments, which we discuss in vaginal dryness after menopause.
Other approaches
- Non-hormonal prescription treatments, for women who cannot or prefer not to use hormones.
- Cognitive behavioural therapy (CBT), which NICE recommends as an option for hot flushes, sleep and low mood linked to menopause.
- Regular exercise, a healthy weight, reducing alcohol and stopping smoking, which support long-term bone and heart health.
Do I still need contraception?
Yes. You can still become pregnant during perimenopause. The usual advice is to continue contraception until you have had no periods for two years if you are under 50, or for one year if you are over 50. Your doctor can help you choose a method that also fits your symptoms.
When to see a doctor sooner
Speak to a doctor promptly if you have:
- bleeding after sex or between periods
- very heavy periods, or bleeding that lasts much longer than usual
- any bleeding once your periods have stopped for a year or more
- menopause symptoms and you are under 40
If your mood is very low, you feel you cannot cope or you have thoughts of harming yourself, contact your GP urgently or call NHS 111. You can call Samaritans free on 116 123 at any time. In an emergency, call 999.
This list is not exhaustive. If you are not sure about something, see a doctor.
How we approach this at Aarva
At Aarva you see a doctor first, with time to go through your symptoms properly rather than relying on a single result. We consider other causes, arrange tests only where they help, and talk through the options that suit your health and preferences.
Your plan is agreed with the doctor in the appointment, and any tests are priced before they are taken. We will tell you honestly if a treatment is unlikely to help. See what to expect and meet our doctors. For everything else we offer, visit women’s health.
Questions patients ask
Can I be perimenopausal with normal hormone levels?
Yes. Hormone levels fluctuate widely in perimenopause, so a single normal result does not rule it out. For women over 45, guidance is to base the diagnosis on symptoms and changes to periods.
What age does perimenopause usually start?
Most women notice changes in their 40s, and the average age of menopause in the UK is 51. Symptoms before 40 should always be assessed by a doctor.
Is it perimenopause or something else?
Tiredness, low mood and poor sleep can have several causes, including thyroid problems, anaemia and depression. A doctor will consider these alongside your periods and other symptoms, and arrange tests where they would help.
Do I need a blood test before starting treatment?
If you are over 45 with typical symptoms, usually not. Some women need tests for other reasons, such as their age, their medical history or to rule out another cause, and your doctor will explain why.
If your symptoms are affecting your life, you deserve to be listened to, whatever your results say. Book a consultation with a doctor, or find your starting point if you are not sure where to begin.
This article is general information and does not replace a consultation with a doctor.
