What testosterone level is low enough to need treatment?

Short answer: most guidelines use a total testosterone cutoff of about 300 ng/dL (≈10.4 nmol/L). Treatment is usually considered only when you have consistent low morning values plus clear symptoms (low libido, erectile problems, low energy, loss of muscle mass, unexplained anemia or low bone density).

Key points and practical steps

• Threshold: a morning total testosterone <300 ng/dL on at least two separate tests is the common trigger for evaluating treatment. Levels well below that (for example <200–250 ng/dL) are much more likely to cause symptoms.
• Confirmatory testing: get two morning (7–10 a.m.) measurements, because T varies through the day and with acute illness. If total T is borderline (≈250–350 ng/dL), a measured or calculated free testosterone (accounts for SHBG) helps interpretation.
• Other labs before treating: LH, prolactin, hematocrit, PSA (if appropriate), and metabolic screening. If results suggest secondary hypogonadism (low/normal LH), you may need pituitary evaluation.
• Symptoms matter: you shouldn’t treat an isolated low lab without compatible symptoms; likewise, symptoms alone should prompt testing rather than empiric therapy.
• Risks and monitoring: testosterone therapy has risks (polycythemia, fertility suppression, possible cardiovascular and prostate-related concerns). If treatment is started, regular follow-up labs (testosterone level, hematocrit, PSA as indicated) and clinical checks are required.

Where to get tested and evaluated (brands/services)

• Lab draws (in-person): LabCorp or Quest Diagnostics — large national networks, accepted by most clinicians and insurers. Good if your doctor orders tests.
• At‑home testing: LetsGetChecked and Everlywell — convenient, send morning samples and return results quickly; good for initial screening but follow up with a clinician if abnormal.
• Telemedicine/evaluation + treatment: Roman, Hims, Vault Health, and Forward — these companies offer online visits, lab coordination, and testosterone treatment programs. They’re convenient for men without local specialists but vary in clinical depth; for complex cases, see an endocrinologist or urologist. Use Zocdoc or your insurer’s directory to find local endocrinologists/urologists if you want specialty care.

If you’re considering treatment

• Talk to your primary care doctor or a specialist (endocrinologist or urologist). Bring symptom history and morning lab results. If fertility is a concern, discuss sperm banking before starting therapy.
• If you want to start with an easy first step: get a morning total testosterone test through LabCorp/Quest or an at‑home kit (Everlywell/LetsGetChecked), then review results with a clinician.

If you’d like, tell me your morning total testosterone value (with unit, e.g., ng/dL or nmol/L) and symptoms and I can explain what the number typically means and what next tests to request.