The causes of hair loss can be complex and involve more than one element related to the health of the individual.
Examples are, it can be diet related; mineral and/or vitamin deficiencies; a side effect of medications taken for other health problems; stress; genetic predisposition; or autoimmune disease which attacks the scalp and/or hair follicles; and finally hormone imbalance caused by child birth or the menopause.
It is also poignant to say that our own lifestyle choices can cause us to lose hair. For instance, smoking decreases blood flow to all areas by damaging vessels, and this includes the scalp; traction due to hairstyles, and harsh chemicals used in some products;
continually wearing hats or caps does not encourage hair growth; and behaviour such as brushing wet hair harshly will help to speed up hair loss, and these are just a few examples.
A considerably high proportion of the population actually suffer with some degree and type of alopecia and seek alopecia treatment. It is estimated that between 30-40 percent of us have hair loss with many people considering hair restoration procedures.
Androgenetic alopecia will be discussed in more detail elsewhere, but another common form of hair loss is Telogen Affluvium or temporary hair loss, which can also be referred to as toxic alopecia. The reason for this name, is that very often it is due to body chemistry changes resulting in an imbalance or toxicity within the body. Obvious examples of this are seen in people undergoing chemotherapy; or radiation therapy for cancers or sometimes arthritic type conditions. Similarly diseases such as lupus; diabetes; thyroid disease, and drugs taken in heart disease can all cause hair loss. Infectious disease accompanied by very high temperature is also likely to have an impact on the health of the hair.
In the case of physical scarring to the scalp gained from either burns, skin cancers or skin disease, then the hair and the hair follicles can be lost as a result.