Hair loss history, Tests
Hair loss history
To determine the cause of your hair loss, your health professional may ask you about:
* Characteristics of your hair loss. Is your hair thinning, with your scalp becoming more visible, but your hair is not noticeably falling out? Or is your hair shedding, with lots of hair falling out?
* How long your hair loss has been occurring. How long has it been since you had your normal amount of hair?
* Your family history of hair loss. Does your mother or father, brother or sister, or any other relative have hair loss? If so, what caused their hair loss?
* Your hairstyling habits. Has your hair become fragile from pulling it too tight or from other hairstyling habits? Have you had any chemical treatments to your hair, such as perms or bleaching? Do you use a blow-dryer that may be too hot? Is a curling iron damaging your hair?
* Any recent illness. Have you had any skin rashes, such as ringworm, recently?
* Medications you are taking. Are you taking blood thinners (anticoagulants) or medications for arthritis, depression, or heart problems? Have you had any cancer treatment?
* Your diet. Are you getting enough protein and iron in your diet?
Tests
If the reason for your hair loss is not clear, your health professional may do tests to check for a disease that may be causing your hair loss. Tests include:
* Hair analysis. Your health professional will take a sample of your hair and examine it under a microscope. A scalp sample might also be taken.
* Blood tests, including testing for a specific condition, such as an overactive or underactive thyroid gland (hyperthyroidism or hypothyroidism).
Hair loss in women is more difficult to diagnose than it is in men because the pattern of hair loss is not as noticeable as it is in men. In women with mild to moderate hair thinning who are otherwise healthy (with normal menstrual cycles and fertility history), testing to diagnose hair loss usually is not done. However, in women who have irregular menstrual cycles, continued episodes of acne, or too much body hair (hirsutism), testing for a class of hormones called androgens, including testosterone, is sometimes done.
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