Free Testosterone Test: Low Levels, Normal Range, SHBG, Symptoms, and Results
A free testosterone test estimates the small share of testosterone that is not tightly bound to sex hormone-binding globulin (SHBG). It can clarify hormone...
Gynecomastia Hormone Test Panel: Testosterone, Estradiol, LH, hCG, Prolactin, and Results
A gynecomastia hormone test panel helps investigate true glandular breast enlargement in a male, especially when it begins suddenly, is painful, occurs before or...
Hypogonadism Blood Test Panel: Total Testosterone, Free Testosterone, LH, FSH, Prolactin, and Results
A hypogonadism blood test panel checks whether a man has consistently low testosterone and helps locate the cause in the testes, pituitary, hypothalamus, hormone-binding...
Inhibin B Test in Men: Sperm Production, Testicular Function, and Results
An inhibin B test measures a hormone made mainly by Sertoli cells in the testes and provides indirect information about seminiferous tubule activity and...
Luteinizing Hormone (LH) Test in Men: Low Testosterone, Pituitary Function, and Results
A luteinizing hormone (LH) test in men measures the pituitary signal that tells Leydig cells in the testes to produce testosterone. Its main clinical...
Male Fertility Hormone Panel: FSH, LH, Testosterone, Prolactin, Inhibin B, and Results
A male fertility hormone panel evaluates the signals that support testosterone production and spermatogenesis. It commonly includes FSH, LH, total testosterone, prolactin, and sometimes...
Male Hormone Test Panel: Testosterone, Free Testosterone, SHBG, LH, FSH, Prolactin, and Results
A male hormone test panel combines total testosterone, free testosterone, SHBG, LH, FSH, and prolactin to evaluate androgen status and the pituitary–testicular axis. It...
Prolactin Test in Men: High Levels, Low Testosterone, Fertility, and Results
A prolactin test in men measures a pituitary hormone that can affect sexual function, testosterone production, fertility, and breast symptoms when it is persistently...
Sex Hormone-Binding Globulin (SHBG) Test in Men: High, Low, and Results
A sex hormone-binding globulin (SHBG) test measures a liver-produced protein that carries testosterone and estradiol in the blood. Its main use in men is...
Total Testosterone Test: High, Low, Normal Range, Symptoms, and Male Hormone Results
A total testosterone test measures all testosterone circulating in blood, including hormone bound to SHBG and albumin plus the small free fraction. It is...
17-Hydroxyprogesterone (17-OHP) Test in Women: PCOS, Congenital Adrenal Hyperplasia, and Results
A 17-hydroxyprogesterone test measures a steroid made mainly in the adrenal glands as the body produces cortisol. In women, the test is most often...
Amenorrhea Hormone Test Panel: FSH, LH, Estradiol, Prolactin, TSH, and Results
An amenorrhea hormone panel helps identify why menstrual periods have not started or have stopped. The first test is usually a pregnancy test, even...
Androstenedione Test in Women: High Levels, PCOS, Adrenal, and Results
An androstenedione blood test measures an androgen precursor made by both the ovaries and adrenal glands. In women, it is most useful when acne,...
Anti-Mullerian Hormone (AMH) Test in Women: Ovarian Reserve, Fertility, and Results
An anti-Müllerian hormone test estimates the number of small growing follicles in the ovaries and is used mainly to assess ovarian reserve and predict...
DHEA-S Test in Women: High Levels, PCOS, Adrenal Causes, and Results
A DHEA-S blood test measures dehydroepiandrosterone sulfate, an androgen produced almost entirely by the adrenal glands. In women, it helps determine whether acne, excess...
Estradiol (E2) Test in Women: High, Low, Normal Range, and Symptoms
An estradiol blood test measures E2, the main estrogen during the reproductive years. It is used to evaluate menstrual changes, ovarian function, fertility treatment,...
Estriol (E3) Test in Women: Pregnancy Estrogen, Placenta Function, and Results
Estriol, or E3, is an estrogen that rises dramatically during pregnancy because its production depends on cooperation between the fetus and placenta. A blood...
Estrone (E1) Test in Women: Menopause, Estrogen Balance, High and Low Results
Estrone, or E1, is one of the body’s three main estrogens. It is less potent than estradiol but becomes the most abundant circulating estrogen...
Female Hair Loss Hormone Test Panel: Testosterone, DHEA-S, Ferritin, TSH, and Results
A female hair loss blood panel can identify medical conditions that increase shedding or contribute to patterned thinning, but no single panel diagnoses every...
Female Hormone Test Panel: Estradiol, Progesterone, FSH, LH, AMH, Prolactin, and Results
A female hormone test panel can help evaluate irregular or absent periods, infertility, suspected ovulation problems, ovarian reserve, early menopause, pituitary disorders, and selected...