Hair loss can be aggravated by other conditions.
Iron deficiency can make hair loss worse and is fairly common in vegetarians and women. Iron deficiency is not a diagnosis by itself and the cause must be found. Correcting iron deficiency can slow down the progression of hair loss but is not likely to cause a major improvement in your hair.
Severe malnutrition and protein deficiency can also contribute to hair loss but hair loss would be the least of your worries.
Thyroid disease can aggravate hair loss. Hair loss can occur with either an underactive thyroid or an overactive thyroid.
Elevated Hormones can speed up hair loss. Men (or women) who take anabolic steroids for body-building often notice accelerated hair loss.
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