Mid-Year Hormone Lab Review: What to Look For

Half the women who walk into my office in June for a hormone recheck tell me some version of the same thing: "I felt amazing in February, and now I'm just okay." That sentence is one of the most useful pieces of data I get all year. It usually means something has drifted. Maybe an estradiol level that was sitting comfortably in range has slipped. Maybe a dose that was perfect in the dead of winter is now a hair too high once the Texas heat ramps up and sleep gets fragmented. The only way to know is to look.

I'm Dr. Farhan Abdullah, and I run Magnolia Functional Wellness here in Southlake. A big part of what we do is hormone replacement therapy for women, and one thing I've learned in practice is that hormones aren't a "set it and forget it" prescription. They're a moving target. Your body changes across the year, your stress changes, your metabolism changes, and the lab work that made sense in January deserves a second look by summer. That's what a mid-year review is for.

By Dr. Farhan Abdullah, DO | Medical Director, Magnolia Functional Wellness | Southlake, TX

So let's talk about what I actually look at when a woman comes in for her six-month check, what those numbers mean, and where I see people (patients and providers both) get it wrong.

Why the Mid-Year Review Beats the Annual One

Most women are conditioned to think of bloodwork as a once-a-year ritual, something you do at your physical and then forget about. For general health screening, that's fine. For hormone therapy, it's not enough. When you start or adjust HRT, your body needs a few months to settle into a new equilibrium, and the symptoms that prompted treatment don't all resolve on the same timeline. Hot flashes might quiet down in week three. Sleep might take two months. Mood and libido can lag even longer.

A check at six months catches the drift before it becomes a problem. I can see whether your estradiol is holding steady or trending down. I can tell if your dose is doing too much, which shows up both in how you feel and in the numbers. And I can catch the quieter stuff, the things that don't announce themselves with symptoms, like a thyroid that's started to lag or a metabolic marker creeping in the wrong direction.

There's also a timing argument rooted in good research. The Kronos Early Estrogen Prevention Study, or KEEPS, taught us a lot about how estrogen behaves differently depending on when in a woman's life it's started and how it's delivered. A 2019 review by Miller and colleagues in Menopause summarizing what we learned from KEEPS reinforced that route of administration and individual response matter enormously. That's exactly why I don't treat a lab value as a finish line. I treat it as one input, checked regularly, interpreted alongside how you're actually living.

Here's the question I want every woman on HRT to be able to answer: do you know what your last estradiol level was, and whether it went up or down? If you can't, you're flying blind, and a mid-year review fixes that.

The Core Panel: What I Order at Six Months

Every woman is a little different, but there's a backbone of labs I order for nearly everyone on hormone therapy. The point isn't to collect numbers for the sake of it. Each one answers a specific question.

Estradiol (E2). This is the headliner. It tells me whether your estrogen dose is landing where we want it. The target depends on your delivery method and your goals, but I'm looking for a level that controls symptoms without pushing you into excess.

Progesterone. If you have a uterus and you're taking estrogen, progesterone isn't optional, it's protective. I want to confirm you're absorbing and using it.

FSH and sometimes LH. These pituitary hormones help me understand where you are in the menopausal transition, especially in perimenopause when everything is in flux.

Total and free testosterone, plus SHBG. Yes, women need testosterone, and it's one of the most overlooked pieces of the panel. More on that below.

Thyroid panel (TSH, free T4, often free T3). Thyroid and sex hormones are deeply intertwined, and thyroid problems love to masquerade as "failed" HRT.

A metabolic and safety layer. Depending on your history, that means a lipid panel, fasting glucose or A1c, a complete blood count, and liver function. These aren't hormones, but they tell me whether your overall physiology is moving in a healthy direction.

One practical note that trips people up constantly: timing of the blood draw matters. If you use a topical estradiol gel or a cream, when you last applied it changes the result. If you're on pellets, where you are in the cycle of that pellet changes things too. I'd rather you tell me "I applied my gel four hours ago" than have us both stare at a number with no context.

Reading Estrogen and Progesterone: The Number Isn't the Whole Story

This is where I have to gently push back on a trend I see in the wellness world, which is the obsession with hitting a specific estradiol number. A level is meaningful, but it lives in conversation with your symptoms. I've had patients with an estradiol of 80 who felt fantastic and patients at the same level who still had hot flashes. The number is a guide, not a verdict.

That said, delivery method shapes what's realistic. Take pellets, which a lot of women ask me about. A thorough 2025 review by Jacobsen and colleagues in the Journal of Clinical Medicine on subcutaneous estradiol pellets described how they tend to produce an early peak in the first week and then settle into a stable range for several months, and it emphasized something I tell every pellet patient: safety depends on individualized dosing and actual laboratory monitoring, not on guessing. That review noted that problems like breakthrough bleeding or supraphysiologic levels usually trace back to overdosing or reimplanting too soon. Translation? You can't dose pellets by feel alone. You check.

For progesterone, I'm less focused on chasing a precise serum level and more on confirming endometrial protection and seeing how it affects you. Oral micronized progesterone, for instance, often helps sleep, which is a feature, not a bug, when we dose it at night. If you're not sleeping better and your levels look low, that's a clue we may need to adjust. If you want a deeper walk through which labs actually matter and which "normal" ranges can be misleading, I wrote a fuller guide on women's hormone labs that pairs well with this.

Testosterone, SHBG, and the Numbers Women Get Wrong

If there's one section of the panel I wish more women understood, it's this one. Testosterone is not a male hormone that women happen to have a little of. It's central to female libido, energy, mood, muscle, and cognitive sharpness. And it's routinely ignored.

The science here deserves precision, because this is also where overtreatment happens. The Global Consensus Position Statement on the use of testosterone therapy for women, published by Davis and an international group of experts in the Journal of Clinical Endocrinology and Metabolism in 2019, made two points I lean on constantly. First, you can't diagnose "low testosterone" in a woman off a single blood level, because symptoms and levels don't track neatly. Second, when you do treat, the goal is to keep concentrations in the normal premenopausal female range, not to chase the supraphysiologic levels that drive side effects like acne or unwanted hair growth. That statement was endorsed by a long list of major medical societies, so this isn't fringe thinking.

This is where SHBG, sex hormone binding globulin, becomes the unsung hero of the panel. SHBG is the protein that grabs onto testosterone and estrogen in your blood. When SHBG is high, more of your testosterone is bound up and inactive, so your total testosterone can look "fine" while your free, usable testosterone is low. That mismatch explains a lot of women who feel flat despite a normal-looking total number. At a mid-year review, if your symptoms and your free testosterone don't line up with your total, SHBG is usually the reason. Oral estrogen, thyroid status, and insulin resistance all push it around.

What I tell my patients is simple: we don't treat a lab slip, we treat you. The numbers tell me how to adjust, but your story tells me whether we're winning.

The Quiet Labs: Thyroid, Metabolic, and Safety Markers

Here's a scenario I see more often than you'd think. A woman is six months into well-dosed HRT, her estradiol is perfect, and she still feels tired, foggy, and heavy. She assumes the hormones failed. Then we run a thyroid panel and find a TSH that's quietly crept up. The hormones were doing their job. The thyroid was the saboteur.

That's why I never review sex hormones in isolation. Thyroid function overlaps so heavily with estrogen and testosterone symptoms that you genuinely cannot tell them apart by feel. Fatigue, weight changes, low mood, thinning hair, brain fog. Those belong to half a dozen hormonal problems at once. The only way to untangle them is to look at the whole picture.

The metabolic markers matter for a different reason. Hormone therapy interacts with your metabolism, and midlife is exactly when insulin resistance, rising lipids, and creeping blood sugar tend to show up. A mid-year lab review is a free opportunity to catch those early, while they're still easy to nudge back with lifestyle, and occasionally medication, before they harden into a diagnosis. I'd rather find a fasting glucose drifting up in June and address it over the summer than discover prediabetes a year from now.

And then there's the basic safety layer. A complete blood count and liver function aren't glamorous, but they keep therapy safe over the long haul. This is the part of medicine that doesn't make headlines and quietly prevents problems. It's also, frankly, the part that separates supervised hormone care from the mail-order version where nobody's watching the numbers at all.

What to Do With This

If you're on hormone therapy and you haven't had labs since you started or since your last adjustment, that's your sign. Six months is a sensible cadence for most women, and the middle of the year is a natural checkpoint. Come in knowing your delivery method, when you last dosed, and most importantly, how you actually feel, because that subjective report is half the diagnosis.

The goal of a mid-year review isn't to collect a prettier spreadsheet. It's to make sure the therapy is still serving the life you want to live, whether that's keeping up at work, sleeping through the night, or having the energy for a Southlake summer that doesn't slow down for anyone. Hormones change. Good care changes with them. If it's been a while since anyone looked closely at your numbers, we'd be glad to do that for you at Magnolia Functional Wellness, and to walk you through what to look for in your own women's hormone replacement therapy plan.