S2E25: Perimenopause is Not a Lab Value
Welcome to Clearly Hormonal
Your periods are changing, your sleep is off, you are losing words mid-sentence, and your hormone labs came back normal. In this first episode of Menopause Awareness Month, Dr. Komal Patil-Sisodia explains why perimenopause is recognized from your history and symptom pattern, not a single lab value. Learn the three clues she uses, how cycles change in early and late perimenopause, when testing actually helps, what else needs to be ruled out, and how to prepare for a visit that ends with a real plan.
Perimenopause Is Not a Lab Value: How to Recognize It and Get the Right Care
By Dr. Komal Patil-Sisodia, MD | Eastside Menopause & Metabolism
Imagine you are in your mid-40s. Your periods used to be predictable, and now some come early and others come late. The flow is all over the place. You are waking up at night, feeling more irritable, and losing the right word in the middle of a conversation. You wonder: could this be perimenopause?
Someone checks your hormones and tells you the results are normal. You still do not feel like yourself. So what happens next?
I see this presentation in my clinic almost every day, and it is why I named this week’s Clearly Hormonal episode “Perimenopause Is Not a Lab Value.” A normal hormone test result does not rule out perimenopause. Here is how it is actually recognized.
Why “I just don’t feel like myself” is so hard to pin down
At the Menopause Society conference I attended virtually last year, one of the talks that stood out to me was about the most common symptom of perimenopause: “I just don’t feel like myself.” That phrase can mean very different things to different doctors. It is not a specific symptom, and that is a big part of why perimenopause is so difficult to diagnose. It is also why so many women reasonably wonder why there is not a single test that makes it clear.
The three clues I focus on
When I am helping a patient put the picture together, I focus on three things:
Age. Perimenopause usually begins in the 40s, but the timing can vary.
Your periods. Changes in timing, flow, and how long periods last are all clues.
Your symptoms. Perimenopause can bring the same symptoms we associate with menopause. Because periods are still happening, women’s concerns often get brushed off. Many women come to me wondering about a thyroid problem or their adrenals.
What your cycle is telling you
Cycle length is the number of days from the first day of one period to the first day of the next. The menopause transition includes perimenopause, which is the two to 10 years before your last menstrual period. Menopause is that final period, confirmed after 12 months without another one. Everything after that is postmenopause.
Clinicians use a framework called STRAW+10 to describe the stages of reproductive aging. Within the menopause transition, it helps to separate early and late perimenopause:
Early perimenopause: cycles vary by at least seven days from what you expected. If your usual cycle is 28 days, one month might be 21 days and the next 35. It is unpredictable, but you are not skipping months at a time.
Late perimenopause: you may go 60 days or longer without a period. This is generally the last one to two years before periods stop altogether.
One unusual cycle does not make a pattern. That is why I encourage women to track their cycles. These patterns are clues, not a test you have to pass before asking for help.
When the picture gets harder to read
Birth control can mask perimenopause symptoms until they break through its effects.
Hysterectomy without ovarian removal, when you are no longer having periods, can make timing harder to predict.
PMOS (polyendocrine metabolic ovarian syndrome, formerly called PCOS) often means irregular cycles for most of life, so it is hard to tell what is changing. Some women find their cycles become more regular as they enter perimenopause and then go haywire again, but that is not always the case.
In every one of these situations, the pattern matters, and so do the symptoms that come with the change in pattern.
A hormone test is a snapshot, not the whole video
Many patients come in asking for FSH, a signal from the brain that tells the ovaries to work, and estradiol, the major form of estrogen made by the ovaries. I think of a hormone test as a selfie you take one day. Your menstrual history and your symptoms are the video, watched from beginning to end. One frame will not give you the same picture.
For that reason, I do not often check FSH and estradiol. They do not help us get to a diagnosis, and it is money spent when you do not need to spend it. AMH and ultrasound measurements of the ovaries do not usually help in this situation either.
The myth: “If my hormone levels are normal, I can’t be in perimenopause.”
The evidence: Hormones fluctuate during the menopause transition, and a result within the lab’s normal range cannot rule it out.
When bloodwork does help
Blood tests are not useless. The question is what we are trying to learn from them.
Under 40 with missed or irregular periods and menopause symptoms: you need an evaluation for premature ovarian insufficiency, when the ovaries stop working normally much earlier than expected.
Between 40 and 45: there is some data that FSH testing might help, but not consistently in everyone.
When the picture is unclear: targeted testing for other things that can affect periods, such as thyroid dysfunction, iron deficiency, vitamin deficiency, and prolactin.
If you miss a period: take a pregnancy test. You are still ovulating in perimenopause, and pregnancy is possible. I have had to tell women in their mid to late 40s that they are pregnant, and it can and does happen.
Symptoms fall into four groups
Everyone thinks of hot flashes, night sweats, and vaginal dryness. Because we have estrogen and progesterone receptors throughout the body, symptoms can show up in many ways. I group them like this:
Sleep: trouble falling asleep or waking at night, whether from night sweats or needing to urinate.
Mood and thinking: irritability, mood changes, trouble concentrating, brain fog, and difficulty finding the right words.
Physical comfort: joint pain, headaches, and breast tenderness.
Sexual and urinary health: vaginal dryness, discomfort with sex, more frequent UTIs, and leaking urine.
Rule out what else could be going on
These symptoms can overlap with other conditions, which is why I look at the whole pattern. Worth considering:
Thyroid disease, when symptoms suggest it
Anemia, since low iron with heavy bleeding and fatigue can contribute
Sleep apnea or insomnia
Medication effects
Anxiety or depression that is getting worse
I want my patients to know we are making sure they do not have another condition that also needs treatment. It is not common that treating perimenopausal hormone fluctuations with hormone therapy or birth control is the silver bullet, especially if something else is going on. If a patient is not feeling better a few months into therapy, we look for other causes.
Perimenopause does not look the same for everyone
The way we diagnose perimenopause is usually the same across racial and ethnic groups, but research shows differences in when it happens, which symptoms women report, and how long they last. In the SWAN study, Black women with frequent hot flashes and night sweats reported the longest duration of symptoms, about 10 years on average. Chinese and Japanese women had a shorter duration, though that does not mean symptoms will be milder. A larger multi-ethnic study found earlier natural menopause among Latina women and later menopause among Japanese American women compared with white women.
These are patterns across groups, and they cannot predict what will happen to you. Stress, living conditions, access to care, and experiences of discrimination all shape health and symptoms too, and race alone does not explain someone’s experience. Every woman deserves an individualized conversation about her life, her symptoms, and her periods. We do not have to have women suffer or wait until their periods are gone before we help.
What a useful perimenopause appointment includes
A review of your periods, symptoms, medications, and health history
Identifying what affects your daily life and ability to function the most
A shared decision about testing. It is often not reproductive hormone testing, but testing to rule out other causes.
A discussion of treatment options and a follow-up plan
A next step if your clinician is not comfortable addressing this: where do you go next?
If you notice that you weigh the same but have less muscle, or you are gaining around your midsection while losing muscle in your arms and legs, talk with your clinician about sleep, strength, nutrition, and metabolic health. I will cover body composition in next week’s episode.
Before your appointment
Write down when your periods are occurring, the symptoms you have noticed and how they have changed, and the three concerns affecting your life the most. You do not need a perfect spreadsheet with color-coded tabs. Then ask one question: Could this pattern fit perimenopause? What else should we evaluate, and what can help me right now?
Three takeaways
Perimenopause is usually recognized from your history and symptoms.
A normal hormone test result does not rule it out.
Your care should include a plan and a follow-up, and if your clinician cannot help, part of your plan should be who to see next.
Follow Dr. Komal Patil-Sisodia:@drpatilsisodia on Instagram and TikTok
This content is for educational purposes only and does not constitute personalized medical advice. Please discuss your specific health concerns with your own healthcare provider.