labtest for hair

Blood Tests for Nutritional Deficiencies
a. Check levels of iron, ferritin, vitamin D, vitamin B12, and zinc.

Thyroid Function Tests
a. Assess thyroid hormones (TSH, T3, T4).

Hormonal Tests
a. Evaluate androgen levels like testosterone and DHEA-S.

Scalp and Hair Follicle Analysis
a. Consider a scalp biopsy or trichoscopy.

Autoimmune Screening
a. Tests like ANA for suspected autoimmune causes.

Other Specific Tests
a. Based on symptoms, test for infections or systemic conditions.

Consultation with a Specialist
a. A dermatologist or trichologist can guide appropriate tests.