Testosterone (Total)
Total testosterone measures the overall amount of testosterone in your blood, including both bound and free forms. It is the primary male sex hormone but is also important for women's health.
Category: Hormones
Also known as: testosterone, total testosterone, testosterone total, testo
Reference range: 270–1070 ng/dL (Source: ABIM)
Standard unit: ng/dL
High values may indicate
High testosterone levels in men may indicate anabolic steroid use or testosterone-producing tumors. In women, high levels may indicate polycystic ovary syndrome (PCOS), congenital adrenal hyperplasia, or ovarian tumors.
Low values may indicate
Low testosterone in men (hypogonadism) may cause fatigue, low libido, erectile dysfunction, decreased muscle mass, and depression. In women, low levels may contribute to decreased libido and fatigue.
Frequently asked questions
- What is a normal Testosterone (Total) level?
- A typical reference range for Testosterone (Total) is 270–1070 ng/dL (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is Testosterone (Total) measured in?
- Testosterone (Total) is most commonly reported in ng/dL. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do Testosterone (Total) reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track Testosterone (Total) over time?
- Yes. Upload results from any lab and BloodId charts your Testosterone (Total) over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: MedlinePlus, U.S. National Library of Medicine
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