What type of blood work is recommended to evaluate other causes for hair loss? Thyroid panel?

Doctor Answers 4

What type of blood work is recommended to evaluate other causes for hair loss? Thyroid panel?

Greetings

Thank you for your question. In short, there are four tests that are key: CBC, TSH, ferritin and vitamin D. The other tests to order depend on the patient's history. I don't order the same blood tests on all patients. It depends on their story.


Turkey Plastic Surgeon
4.9 out of 5 stars 80 reviews

What type of blood work is recommended to evaluate other causes for hair loss? Thyroid panel?

We order a thyroid panel on each of our transplant patients as a pre-op. However it is good to look into a serum Ferritin levels for an iron deficiency that may be a cause for diffuse thinning in Women.  

William Woessner, MD
New Orleans Hair Restoration Surgeon
5.0 out of 5 stars 5 reviews

Blood tests for hair loss- which ones are needed?

A CBC, TSH, 25 hydroxyvitamin D and ferritin are essential for all women with hair loss

The other tests that are needed depend on your history of hair loss

  1. All premenopausal women with "regular" periods and no acne or hair growth on the face really don't need an extended panel of tests. It's a waste for most to order every hormone possible. 
  2. Women with irregular periods need blood work on day 3 of the menstrual cycle for LH, FSH, androstenedione, DHEAS, sex hormone binding globulin, prolactin, free and total tesosterone and AM cortisol
  3. Women with hair loss and severe acne or hair growth on the face require free and total tesosterone, DHEAS and androstenedione
  4. Women with poor bowel absorption or restrictive diets need serum zinc levels
  5. Women with sun sensitivity, joint pains, mouth or vaginal ulcers, cough, or anemias benefit from ANA and ESR. I add ENA (extractable nuclear antigen) if dry eyes, dry mouth or concerns for autoimmunity are present.
In short, there are four tests that are key: CBC, TSH, ferritin and vitamin D. The other tests to order depend on the patient's history. I don't order the same blood tests on all patients. It depends on their story.

Hair loss

Are you male or female. f you are female, then the following tests work for evaluating hair loss: 

  • Sex Hormone tests
  • SHBG (Sex Hormone Binding Globulin) used to test status of male hormones
  • Estradiol is a sex hormone
  • FSH (Follicle Stimulating Hormone) *not hair follicle but follicle in the ovary*
  • LH (Luteinizing Hormone) is a sex hormone
  • Free Testosterone
  • Total Testosterone
  • ANA (Anti Nuclear Antibody) used to test for Lupus or other autoimmune diseases
  • TSH (Thyroid Stimulating Hormone) used to test for hyper or hypo-thyroid disease
  • Test Iron status
  • TIBC (Total Iron Binding Capacity)
  • Ferritin
  • Iron

William Rassman, MD
Los Angeles Hair Restoration Surgeon
5.0 out of 5 stars 27 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.