Testosterone Replacement Therapy (TRT): Medical Guide

# Testosterone Replacement Therapy (TRT): Medical Guide

Testosterone Replacement Therapy (TRT) is the legal, medical use of testosterone to treat low testosterone (hypogonadism). This guide covers diagnosis, treatment, dosages, and expected results.

What Is Hypogonadism?

Hypogonadism = abnormally low testosterone. Two types:

Primary hypogonadism: Testes don't produce testosterone (problem at source)

• Causes: Klinefelter syndrome, testicular injury, mumps orchitis

Secondary hypogonadism: Brain doesn't signal testes to produce testosterone (problem with signaling)

• Causes: Pituitary dysfunction, obesity, age (natural decline)

Symptoms of low testosterone (<300 ng/dL):

• Low energy, fatigue
• Mood issues, depression
• Erectile dysfunction
• Low libido
• Loss of muscle mass
• Increased body fat
• Brain fog

TRT Diagnosis

Blood test required: Fasting testosterone test (morning is best — testosterone is highest then)

Normal ranges:

• Adult male: 300-1000 ng/dL (depending on lab)
• Below 300: Hypogonadism (medical diagnosis)
• Below 200: Severe hypogonadism (likely to be treated)

Important: Repeat testing needed (TRT doctors require multiple tests before starting)

Why? One low test could be temporary (stress, poor sleep, etc.). Multiple low tests = diagnosis.

TRT from a Doctor

How to get TRT:

1. Schedule testosterone test with primary care doctor
2. If low (below 300), doctor may refer to endocrinologist or TRT clinic
3. Confirm diagnosis with 2+ tests
4. Start TRT at replacement dose (not supraphysiologic)

TRT doctors vary:

• Traditional medicine (conservative dosing, careful monitoring)
• TRT clinics (more aggressive, online options, mixed quality)

TRT Dosages

Important: TRT doses are REPLACEMENT (getting you to normal), not supraphysiologic (like cycle doses)

Standard TRT Dosing

Testosterone Enanthate or Cypionate (Injectable):

• Typical dose: 75-125mg/week
• Range: 50-200mg/week (most stay 75-150)
• Frequency: Weekly injection or twice weekly
• Goal: Get testosterone to 400-900 ng/dL

Testosterone Propionate (Injectable):

• Less common for TRT
• Faster-acting, requires more frequent injections

Testosterone Patch (Androgel, Testogel):

• Typical: 50-100mg/day (applied to skin)
• More expensive, less absorption issues

Testosterone Pellets (Implanted):

• 600-1200mg implanted surgically
• Lasts 3-6 months
• More stable hormone levels

Common choice: Injectable enanthate or cypionate (cheapest, most effective)

Expected Results on TRT

Timeline:

• Week 1-2: Feel more energetic
• Week 3-4: Mood improves, libido returns
• Week 6-8: Strength increases, muscle gain starts
• Week 12: Noticeable muscle gain and fat loss
• Month 3-6: Significant improvement in all symptoms

Results after 6 months on TRT:

• Muscle gain: 5-10 lbs
• Fat loss: 5-10 lbs
• Strength: +20-50 lbs increase
• Mood: Significantly improved
• Energy: Baseline restored
• Libido: Restored to normal

These results are modest compared to cycle steroids because TRT dosing is replacement (returning to normal), not supraphysiologic (going above normal).

TRT vs Steroid Cycles: Key Differences

TRT Monitoring

Good TRT doctors require regular blood work:

Baseline:

• Testosterone (free and total)
• Estradiol
• Prolactin
• PSA (prostate)
• Liver function
• Kidney function
• Lipid panel
• Hemoglobin/hematocrit

Every 6-12 months on TRT:

• Testosterone (verify dose is working)
• Estradiol (manage if high)
• PSA (prostate monitoring)
• Lipids (monitor cholesterol changes)
• Hemoglobin (monitor RBC changes)

Why PSA testing? Testosterone can increase prostate growth/PSA. TRT doctors monitor this.

TRT Side Effects (Replacement Doses)

Minimal at proper replacement doses:

Mild (Common, manageable):

• Acne (mild, manageable with hygiene)
• Water retention (minor, not significant)
• Mild mood changes (unusual)

Serious (Rare at replacement doses):

• Elevated hematocrit (elevated RBCs — rare)
• Prostate issues (rare at TRT doses)
• Cardiovascular issues (rare at TRT doses)

Why fewer sides than cycles? Replacement doses stay within normal ranges. High-cycle doses go far above normal.

Cost of TRT

With insurance:

• Testosterone: $10-50/month (usually covered)
• Doctor visits: Copays (~$25-40)
• Blood work: Covered or minimal cost
• Total: $50-150/month

Without insurance (TRT clinics, private):

• Testosterone: $75-150/month
• Doctor visit/consultation: $150-300/month
• Blood work: $200-300/quarter
• Total: $200-400+/month (expensive)

Pharmaceutical (prescription through pharmacy):

• Most affordable option
• Generic available (cheap)

Legitimate TRT Clinics vs. Scams

Legitimate TRT clinics:

• Require blood work before starting
• Provide regular monitoring (blood work every 3-6 months)
• Conservative dosing (replacement, not cycle doses)
• Licensed doctors
• Transparent pricing

Red flags (avoid these):

• No blood work required ("just start TRT")
• No follow-up monitoring
• Pushing very high doses ($1000+/month testosterone)
• No doctor consultation
• Too cheap (usually means low quality, no monitoring)

Long-Term TRT Considerations

If you start TRT, it's typically lifelong:

1. Your body adapts to exogenous testosterone
2. Natural production may not fully recover (depends on how long you've been hypogonadal)
3. Most users stay on TRT indefinitely

Exception: Some users recover natural testosterone if they had temporary hypogonadism (obesity-related, stress-related). These can discontinue.

TRT vs "Blast and Cruise"

Some former steroid users switch to TRT-like dosing year-round ("cruising"):

Cruise dose (like TRT):

• 150-250mg testosterone/week
• Maintains muscle between cycles
• Similar to TRT

Difference: "Blast and cruise" users go into higher cycles (500+ mg) periodically, then cruise. TRT users stay at replacement permanently.

Fertility on TRT

Important: TRT suppresses sperm production (testosterone shuts down FSH/LH)

If fertility is a concern:

• Use HCG while on TRT (maintains sperm production)
• Or use testicular aromatase inhibitors (experimental)
• Or time TRT with fertility goals

Standard: TRT is prescribed for men who don't plan more biological children.

Summary

TRT is legal testosterone replacement for diagnosed hypogonadism. Typical dosing is 75-150mg/week, providing restoration of normal testosterone levels and modest muscle/strength gains.

Compare to steroid cycles — TRT is replacement (lifelong), cycles are supraphysiologic (temporary).

TRT requires monitoring, legitimate doctors, and commitment to lifelong treatment. Results are gradual but sustainable.