Lab marker · Low

Low Total Testosterone: what it means

A Total Testosterone result below the normal range is considered low. Here is what a reduced Total Testosterone can point to, and when it is worth discussing with a doctor.

Reference range: 300–1000 ng/dL (adult males morning); 15–70 (adult females)

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What a low Total Testosterone can mean

  • Male hypogonadism — primary (testicular) — Klinefelter, post-orchitis, chemotherapy.
  • Male hypogonadism — secondary (pituitary) — pituitary tumour, opioid use, severe obesity, sleep apnoea, chronic illness.
  • Age-related decline — modest, gradual; not all symptoms in older men respond to replacement.
  • Stress, acute illness, recent intense exercise — transient drops.

When to discuss with a doctor

In a man with persistent symptoms (low libido, fatigue, erectile dysfunction) and morning total testosterone <300 ng/dL on two occasions, an endocrinology / urology consultation is appropriate to decide on replacement vs investigating the cause. In a woman with elevated testosterone plus irregular cycles or hirsutism, a PCOS work-up is the usual next step. Mediora.AI surfaces the threshold; replacement therapy belongs with a physician.

Conditions this can relate to

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Mediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.