Why timing matters
Hormones fluctuate across your cycle, so when blood is drawn matters as much as what is drawn. Progesterone, for example, is only meaningful about a week after ovulation. A good provider times your labs to your cycle — random-day hormone panels often create more confusion than clarity.
Labs commonly used in hormone evaluation
- TSH and free T4 — thyroid function; thyroid disease mimics hormone imbalance.
- LH and FSH — brain-to-ovary signaling; the ratio can hint at PCOS.
- Estradiol — the main estrogen; interpreted with cycle day.
- Progesterone — confirms whether ovulation happened (drawn ~7 days after suspected ovulation).
- Total and free testosterone, DHEA-S — androgen levels behind acne, hair changes, and cycle disruption.
- Prolactin — high levels can suppress ovulation.
- A1C and fasting glucose/insulin — metabolic picture and insulin resistance.
- AMH — ovarian reserve marker; often high in PCOS (which is not the same as "good fertility").
- Vitamin D, B12, iron/ferritin — common deficiencies that worsen fatigue and hair shedding.
"Normal" isn't always optimal
Lab reference ranges are built from population averages — including people with undiagnosed conditions. A result can be technically "normal" while still being suboptimal for you. Interpretation in the context of your symptoms is what matters.
How testing works with telehealth
We order your labs electronically; you get drawn at a lab near you; results come back to us and we review them together by video. No extra appointments, no driving across town.
Frequently Asked Questions
Do I need to fast before hormone labs?
For metabolic labs (glucose, insulin, lipids), yes — usually 8-12 hours. Most reproductive hormones don't require fasting. Your provider will give exact instructions with your lab order.
What if my labs are 'normal' but I still feel bad?
This is one of the most common stories we hear. Normal-range labs don't rule out hormone imbalance — timing, trends, and symptom correlation matter. A second look with properly timed labs often tells a different story.