What causes my seborrheic dermatitis?
” Although researchers don’t know the exact causes, one popular theory is that it is associated with yeast (malassezia genus) organisms that are common residents of human skin. Since they need lipids to survive, they tend to colonize areas of the skin that are relatively rich with sebum. These fungi, according to some studies, are believed to trigger an immuno-allergic type response in susceptible individuals, while other studies report that the yeast metabolize sebum and generate byproducts that are irritating to the skin. Other factors suspected of possibly contributing include: * genetic predisposition * seborrhea (oily skin) fosters the growth of malassezia * environment, i.e., temperature, humidity * exposure to soaps, detergents and irritants that degrade the skin’s barrier function * androgens may play a role by increasing sebum output * other neurological conditions such as stroke, multiple sclerosis, and paralysis * mood disorders such as depression * alcoholism * stress/diet/
