Contraindications for Testosterone Injection
Testosterone injections are absolutely contraindicated in men with metastatic prostate cancer or breast cancer, and should not be given to men with hematocrit >50%, unevaluated prostate nodules or induration, PSA >4 ng/mL (or >3 ng/mL in high-risk men), severe lower urinary tract symptoms, uncontrolled heart failure, recent MI/stroke (within 6 months), untreated severe obstructive sleep apnea, or those desiring fertility in the near term. 1, 2
Absolute Contraindications (Very High Risk)
The following conditions represent absolute contraindications where testosterone therapy must not be initiated:
- Metastatic prostate cancer - Testosterone is a hormone-dependent cancer that will be stimulated to grow during treatment 1
- Breast cancer - Another hormone-dependent malignancy that testosterone can stimulate 1, 3
- Pregnancy Category X - Testosterone is teratogenic and absolutely contraindicated in pregnancy 4
Strong Contraindications (Moderate to High Risk)
These conditions carry substantial risk and testosterone should not be started without addressing them first:
Prostate-Related
- Unevaluated prostate nodule or induration on digital rectal exam - requires urological evaluation before any consideration of therapy 1, 2
- PSA >4 ng/mL in general population 1, 2
- PSA >3 ng/mL in high-risk men (African-Americans or men with first-degree relatives with prostate cancer) 1, 2
- Severe lower urinary tract symptoms with AUA/IPSS score >19 1, 2
Hematologic
- Hematocrit >50% (some guidelines use >52%) - testosterone will worsen erythrocytosis and increase thrombotic risk 1, 3, 2
Cardiovascular
- Uncontrolled or poorly controlled congestive heart failure - testosterone may worsen fluid retention and cardiac function 1, 2
- Myocardial infarction or stroke within the last 6 months - insufficient safety data in this acute period 2
- Thrombophilia - increased risk of thromboembolic events 2
Respiratory
Reproductive
- Men planning fertility in the near term - testosterone suppresses spermatogenesis and is inappropriate for men with hypogonadotropic hypogonadism who desire fertility 1, 2, 1
Relative Contraindications
These conditions require careful evaluation and may respond to adjustments or specific treatments before initiating testosterone:
- Benign prostatic hyperplasia - may worsen with therapy but can be managed with dose adjustments or specific BPH treatments 3
- Sleep apnea (not severe/untreated) - may respond to CPAP or weight reduction 3
- Peripheral edema - may worsen with testosterone 3
- Polycythemia - requires monitoring and dose adjustment 3
Critical Pre-Treatment Evaluation
Before initiating testosterone therapy, the following must be performed 3, 2:
- Digital rectal examination of the prostate
- PSA level (in men >40 years old with baseline PSA >0.6 ng/mL)
- Hematocrit measurement
- Assessment for sleep apnea symptoms
- Cardiovascular risk assessment
- Fertility desires discussion
If any prostate-related abnormalities are detected, refer to urology before proceeding 3.
Common Pitfall to Avoid
The FDA-mandated language in testosterone package inserts states that testosterone is contraindicated in men with a "history of or suspected" prostate cancer 4, 5. However, this represents older thinking. While active or metastatic prostate cancer remains an absolute contraindication, some contemporary evidence suggests that men who appear cured after definitive treatment (radical prostatectomy with undetectable PSA) may be candidates for therapy with careful monitoring 5. This remains controversial and requires shared decision-making with urology involvement.
The key distinction: metastatic/active prostate cancer is absolutely contraindicated, while history of treated prostate cancer with favorable outcomes may be considered on a case-by-case basis with appropriate specialist involvement 1, 5.