Most men see a doctor reactively — something hurts, something broke, something alarming appeared. The annual blood panel is the antidote to that pattern: a systematic snapshot of the systems that matter most, ordered before symptoms force the conversation.
What follows is not the standard "get a CBC and a lipid panel" advice. This is the expanded menu for men who want to catch problems early and track optimization metrics — organized by age bracket because priorities shift every decade.
The Universal Baseline (All Ages)
Every man, every year, regardless of age or medication status:
| Test | What It Catches | Why Men Skip It |
|---|---|---|
| CBC (Complete Blood Count) | Anemia, infection, polycythemia (critical on TRT) | Feels "basic" — but hematocrit alone justifies it |
| CMP (Comprehensive Metabolic Panel) | Kidney function, liver enzymes, glucose, electrolytes | Usually included with any panel |
| Lipid Panel | Cardiovascular risk (total cholesterol, LDL, HDL, triglycerides) | No symptoms until it's a crisis |
| HbA1c | 3-month average blood sugar, pre-diabetes screening | Men assume diabetes is obvious |
| TSH | Thyroid function — affects weight, energy, mood | Thyroid disease is "a women's thing" (it isn't) |
Your 20s: The Baseline Decade
In your twenties, the goal isn't optimization — it's documentation. Establish your baseline for testosterone, metabolic markers, and thyroid function while your body is presumably at peak function. These numbers become the reference point against which future changes are measured.
Add to baseline:
- Total testosterone + free testosterone: Your natural peak is typically 18–25. Get your number now so you know what "your normal" looks like.
- SHBG (Sex Hormone Binding Globulin): Determines how much of your total testosterone is bioavailable. Some men have high total T but low free T because SHBG is binding it up.
- Vitamin D (25-OH): Surprisingly common deficiency in young men, especially those who work indoors. Affects testosterone, mood, bone density, and immune function.
What you probably don't need at this age: PSA screening, advanced cardiac markers, or inflammatory panels — unless family history dictates otherwise.
Your 30s: The Transition Decade
Testosterone begins its roughly 1–2% annual decline after 30. Metabolic changes from career sedentarism and dietary habits start showing up in bloodwork before they show up in the mirror.
Add to baseline:
- Fasting insulin: Catches insulin resistance years before HbA1c moves. The most underordered metabolic test in men's medicine.
- Estradiol (sensitive assay): Becomes relevant as body fat increases and aromatase activity rises. A man at 32% body fat may be converting significant testosterone to estrogen.
- Ferritin: Iron storage — too low causes fatigue that mimics low T; too high can indicate hemochromatosis, which is underdiagnosed in men.
- hsCRP (high-sensitivity C-reactive protein): Baseline inflammatory marker. Elevated hsCRP in a lean, healthy 35-year-old warrants investigation.
Your 40s: The Monitoring Decade
This is when most men's health stacks start. GLP-1 prescriptions peak in the 40–55 age range. TRT initiation concentrates between 40 and 50. The lab panel needs to expand to cover everything these therapies affect.
Add to baseline:
- PSA (Prostate-Specific Antigen): Controversial but important. The AUA recommends shared decision-making about PSA screening starting at 40 for men at higher risk, 55 for average risk. If you're on TRT, annual PSA is non-negotiable.
- DHT (Dihydrotestosterone): Relevant for men on TRT or finasteride. DHT drives both prostate growth and hair loss — tracking it ensures your DHT-modifying therapies are working as intended.
- LH/FSH: Pituitary hormones that reveal whether low testosterone is primary (testicular) or secondary (signaling). Critical if TRT is being considered.
- Hemoglobin/Hematocrit: Still part of CBC, but now watched specifically because TRT elevates red blood cell production. Target: hematocrit below 54%.
Your 50s: The Cardiovascular Decade
Cardiovascular risk rises substantially. The TRAVERSE trial (2023) provided reassurance that TRT doesn't increase major adverse cardiac events, but the 50s is when underlying vascular disease manifests regardless of TRT status.
Add to baseline:
- Lp(a): Genetically determined lipoprotein that's an independent cardiovascular risk factor. One-time test — it doesn't change much over time, but knowing your level changes management.
- ApoB: A better predictor of cardiovascular risk than LDL alone. Counts every atherogenic particle in your blood.
- Coronary artery calcium (CAC) score: Not a blood test — it's a low-dose CT scan. But for men in their 50s on multiple medications, a CAC score provides the most direct evidence of whether atherosclerotic disease is actually present.
- GFR trending: Your CMP has been calculating this all along, but now is when kidney function decline becomes clinically relevant, especially for men on NSAIDs, certain supplements, or creatine.
Your 60s and Beyond: The Comprehensive Decade
At 60+, the lab panel is essentially the full menu. Everything above, plus heightened attention to markers that predict age-related decline:
- IGF-1: Growth hormone axis marker. Relevant for men considering or on secretagogues.
- Cystatin C: More accurate kidney function measure than creatinine-based GFR, especially in muscular men.
- DEXA scan: Bone density and body composition in one test. Men on long-term TRT, GLP-1s, or corticosteroids should have baseline bone density.
Lab Timing for Men on Medications
When to Draw Based on Your Stack
- TRT (injectable): Draw at trough — the morning before your next injection
- Finasteride: Note on lab order; PSA values are roughly halved on finasteride
- GLP-1: No specific timing, but fasting for metabolic markers still applies
- ED meds: No impact on standard bloodwork
- Fasting: 10–12 hours for glucose, insulin, and lipid panel accuracy
The Bottom Line
Build Your Panel by Decade
Start with the universal baseline, add decade-specific markers, and layer in medication-monitoring tests as your stack evolves. The goal is a single comprehensive draw that covers everything — not three separate panels ordered by three separate providers who don't talk to each other.