A key sex hormone that supports sex drive, muscle, bone, mood, and energy.
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Clinicians check testosterone when symptoms suggest low or high levels, such as changes in sex drive, energy, mood, hair, or periods. It also helps assess fertility, puberty timing, and monitor hormone therapy. Results can guide follow-up tests like free testosterone, SHBG, LH, and FSH. You can test this marker with Aniva across Germany and Finland.
Clinicians check testosterone when symptoms suggest low or high levels, such as changes in sex drive, energy, mood, hair, or periods. It also helps assess fertility, puberty timing, and monitor hormone therapy. Results can guide follow-up tests like free testosterone, SHBG, LH, and FSH. You can test this marker with Aniva across Germany and Finland.
High: May reflect increased production, supplements or anabolic steroid use, or certain medications; in women, can relate to androgen excess symptoms like acne or unwanted hair.
Low: May occur with aging, pituitary signaling issues, chronic illness, obesity, or some medicines (for example, opioids or steroids). A morning repeat can confirm results, and checking SHBG and free testosterone often helps.
Common factors that can skew results include the time of day (levels peak in the morning), recent illness, strenuous exercise, and certain drugs (androgen therapy, anabolic steroids, antiandrogens, glucocorticoids, opioids). High-dose biotin supplements can interfere with some immunoassays. Oral estrogen and some liver or thyroid conditions can change SHBG and shift total levels without changing true hormone activity.
Special situations (when to confirm or adjust): repeat a low result with a morning sample; consider free or calculated free testosterone if SHBG is abnormal; use LC–MS/MS methods when available; discuss timing if on gender-affirming therapy, contraceptives, or during pregnancy.
What do my testosterone results mean? Higher levels can relate to androgen excess or supplements. Lower levels can occur with aging, illness, or some medicines. Your doctor will consider symptoms and context.
Do I need to fast? No. A morning sample is best, especially for men. Avoid high-dose biotin for 24 hours before testing.
How often should I test? If a result is low, repeat on a morning sample to confirm. During treatment, your clinician may check levels every few months, then less often.
How long do results take? Most labs report within 1–3 business days.
What can affect my levels? Time of day, acute illness, intense exercise, alcohol, and medicines like steroids, opioids, or androgens can shift results.
What should I discuss with my clinician? Share symptoms, all medicines and supplements, and goals. Ask if free testosterone, SHBG, LH, or FSH testing would add clarity.
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