How to Check Whether Something Is Really Disrupting Your Hormones

Step one: describe the pattern, not the fear

Before any test, write down what changed and when. Note energy across the day, sleep hours and quality, cycle length and bleeding if relevant, libido, mood, hair and skin changes, weight trend, training load, alcohol, new medication or supplements, and major life stress. A four-week written record is more diagnostically useful than a list of suspected chemicals, because clinicians reason from patterns.

Step two: see the right clinician

Start with a primary care doctor. Ask directly: 'These symptoms have lasted this long—what should we rule out?' Depending on the picture, you may be referred to an endocrinologist, a gynaecologist, a urologist or a sleep clinic. Bring your record, your medication list and any family history of thyroid, diabetes or autoimmune disease.

Step three: the tests clinicians actually use

Testing is selected by symptoms, not ordered wholesale. Typical first-line investigations include thyroid-stimulating hormone with free T4, full blood count, ferritin and iron studies, HbA1c or fasting glucose, vitamin D, and liver and kidney function. For men reporting low libido, fatigue or erectile difficulty, a morning fasting total testosterone repeated on a second morning is standard, usually alongside LH, FSH and prolactin. For irregular cycles, tests may include a timed progesterone, LH and FSH, prolactin, androgens and sometimes pelvic ultrasound for suspected PCOS. Cortisol and pituitary testing follows specific protocols rather than routine screening.

Two points prevent wasted money. First, a single abnormal result is often repeated before it means anything. Second, reference ranges depend on assay, age, sex, time of day and cycle phase, so screenshots of numbers without context rarely answer the question.

Step four: judge exposure claims separately

Endocrine-disrupting chemicals are a genuine field of study. Regulators and scientific societies describe effects at population level for specific substances at specific exposures, largely from laboratory and epidemiological research. That is a different question from 'did my leggings cause this symptom', which no available test can answer. Reducing avoidable exposures—unnecessary finishes, poorly regulated imports, heating food in damaged plastic, tobacco smoke—is reasonable precaution. It is not a diagnosis or a treatment.

Step five: change what evidence supports

While investigation proceeds, the highest-yield changes are unglamorous: consistent sleep, sufficient protein and iron, moderate training with recovery, limiting alcohol, treating depression or anxiety, and reviewing medications with a prescriber. If a specific diagnosis emerges, treat that diagnosis. If tests are normal and symptoms persist, ask what else should be considered rather than assuming a hidden toxin.