Seborrheic dermatitis

Seborrheic dermatitis is a scaly erythematous background oily scalp.
Dermatita seboreica este o afectiune cutanata cronica inflamatorie, ce afecteaza zonele bogate in glande sebacee: fata (sprancene, santuri nazale, obraji, scalp) si trunchiul (in dreptul sternului si in pliurile cutanate). Seborrheic dermatitis is a chronic inflammatory skin condition that affects areas rich in sebaceous glands: the face (eyebrows, nose ditches, cheeks, scalp) and trunk (in front of the sternum and skin folds).

Cauza dermatitei seboreice nu este pe deplin inteleasa, dar este recunoscut faptul ca ciuperca microscopica Pityrosporon ovale este implicata in aparitia acestei dermatoze; la fel si factorii genetici, de mediu si starea generala de sanatate a persoanei. The cause of seborrheic dermatitis is not fully understood, but it is recognized that Pityrosporon oval microscopic fungus is involved in the development of this dermatosis, and as genetic factors, environmental and general health of the person.

Radiatiile UVA si UVB inhiba proliferarea ciupercii P. ovale, astfel incat la numerosi pacienti se inregistreaza o ameliorare in timpul verii. UVA and UVB radiation inhibit the proliferation of the fungus P. ovale, so many patients there is an improvement over the summer.

Dermatita seboreica este mai frecventa la barbati decat la femei, probabil deoarece activitatea glandelor sebacee este controlata de hormonii masculini. Seborrheic dermatitis is more common in men than in women, probably because sebaceous gland activity is controlled by male hormones. Dermatita seboreica apare pentru prima data in adolescenta si apare cu intermitente la varsta adulta. Seborrheic dermatitis first appears in adolescence and adulthood occurs intermittently.

Dermatita seboreica este agravata de modificarile de umiditate, temperatura, de traumatisme (grataj) sau de stresul emotional. Seborrheic dermatitis is aggravated by changes in humidity, temperature, trauma (scratching) or emotional stress.

Prevalenta dermatitei seboreice este de 3 -5% din populatie, mai grava la barbati. Matreata , cea mai usoara forma de dermatita seboreica este cea mai frecventa, fiind prezenta la 15 -20% din populatie. The prevalence of seborrheic dermatitis is 3 -5% of the population, more severe in men. dandruff , the mildest form of seborrheic dermatitis is the most common, being present at 15 -20% of the population.

Debutul este de obicei la pubertate, iar varful incidentei se inregistreaza la 40 ani. Onset is usually at puberty, and peak incidence is recorded in 40 years. Dermatita seboreica apare si la sugari, sub forma "crustelor de lapte" si la varstnici. Seborrheic dermatitis occurs in infants and the form "milk crust" and the elderly.