Fertility Blood Tests in California

What this test measures

Fertility is influenced by many hormonal signals that rise and fall across the menstrual cycle. Testing commonly focuses on markers that describe follicle development, ovulation, and the hormones that regulate them. Examples include follicle-stimulating hormone, luteinizing hormone, estradiol, and progesterone.

Other markers add context. Anti-Mullerian hormone gives an indication of the number of small follicles in the ovaries, while prolactin and thyroid-stimulating hormone can affect cycles when they are out of balance. A provider selects the markers based on what they want to learn.

Results depend heavily on when in the cycle the sample is collected, so timing instructions matter. A single value describes one point in time, and providers may compare several results over a cycle. A qualified healthcare provider decides how the information fits into a care plan.