I-Psoriasis, eyaziwa ngokuthi i-scaly lichen, isifo sesifo esingenasifo esithathelwanayo. Igama livela egameni lesiGreki elithi "psoroo", okusho ukuthi "itching". Lesi sifo sibonakala ngokuyinhloko ngesibhakabhaka esibomvu esikhumbeni, nakuba kunezinhlobo eziningana ze-psoriasis. Kuze kube manje, i-psoriasis ingenye yezifo zesikhumba ezingavumelani nezifo, ezithinta cishe 4% wabantu bezwe.
Izinhlobo ze-psoriasis
Kunezinhlobo eziningana ze-psoriasis kuye ngokuthi kubonakala kanjani ama-plaques, indawo yabo, imbangela nokuqina kwesi sifo:
- I-Vulgar (evamile) i-psoriasis. Ifomu elivame kakhulu lesi sifo, elibika ngamacala angu-90%. Kubonakala ngesimo se-plaque evulekile ekhuphuka ngaphezu kwesikhumba.
- Ukuguqula noma okuthiwa i-psoriasis yezindawo eziguquguqukayo. Ama-plaque angaphezu kwesikhumba cishe ayengaqhubi, ahlala endaweni ye-armpits, groin, ezinqulwini.
- I-Guttate psoriasis. Kubonakala sengathi i-rash ehlanganisa izindawo ezinkulu zesikhumba.
- I-pustular psoriasis. Enye yezinhlobo ezimbi kakhulu. Usuku lwayo lubonakala ngokubunjwa kwe-blisters (ama-pistules), ngokutheleleka kwesibili okungenzeka ukuthi i-psoriasis ingahamba kanjani ifomu le-purulent.
- I-Erythrodermal psoriasis. Kungaba ukucindezela kwe-psoriasis evamile, nokusabalalisa kwesikhumba esiningi.
Izimbangela ze-psoriasis
Izimbangela ezingavamile ze-psoriasis azange zisungulwe kuze kube manje. I-hypothesis ethandwa kakhulu yiyona ndlela yokuzimela kwesifo. Okungukuthi, kukholelwa ukuthi ukuvuvukala kuhlotshaniswa nokungasebenzi kahle kwesimiso somzimba sokuzivikela komzimba, lapho ukukhiqizwa ngokweqile kwe-lymphocytes nama-macrophages esikhumba kwenzeka. Zihlasela amangqamuzana anempilo futhi ngaleyo ndlela zibangele ukuqala kwenqubo yokuvuvukala. Ukwamukela lokhu kucatshangelwa ukuthi ukuthatha izidakamizwa ezithinta amasosha omzimba ngokuvamile kunomthelela omuhle ekwelapheni kwe-psoriasis.
I-hypothesis yesibili iphathelene ne-psoriasis ezifweni zesikhumba esiyinhloko, ezibangelwa ukuhlukaniswa okusheshayo kwamangqamuzana e-epidermal, okwenza kube nokwakhiwa kwamapulethi abila. Kusukela ekubukeni kwalesi sizathu, izidakamizwa ezicindezela ukwehlukaniswa kwamaseli e-epidermal, kanye nalawo ayenamavithamini A no-D, asetshenziselwa ukwelashwa, okubuye kube nomthelela omuhle.
Izimbangela zokubonakala kwe-psoriasis
Ngaphandle kwezizathu ezingenhla, kunezinto eziningana ezisungulwe ezingathinta amasosha omzimba futhi ziqale ukuqala kwesifo, ikakhulukazi uma kunesimo sokuthi izakhi zofuzo zikhona:
- Ezimweni ezingaba ngu-40%, ukubonakaliswa kwe-psoriasis kutholakala ngemuva kokushaywa kanzima ngokomzwelo, ukucindezeleka, ithonya lezimo ezihlukahlukene zokucindezeleka.
- Ukuphazamiseka kwemetaboliki, izifo zegciwane lokugaya, ikakhulukazi - isisu sangasese esingaguli, i-pancreatitis, i-cholecystitis.
- Izifo ezithathelwanayo, ikakhulukazi umkhuhlane, umkhuhlane omnyama , izifo eziphezulu zokuphefumula nazo zingabangela ukuthuthukiswa kwe-psoriasis.
- Ukuphazamiseka kwamahomoni.
Izizathu ezingenhla zivame kakhulu lapho kwenzeka khona i-psoriasis, futhi ngokuvamile ukubonakala kwayo okuyinhloko kukhonjiswe ekhanda noma endaweni yemifula yemvelo (indawo ye-inguinal, i-elbows, i-armpits).
Kwezinye izingxenye zomzimba lesi sifo sisakazeka ngezizathu ezilandelayo:
- Izilonda zefungal. Isizathu esivame kakhulu esivusa i-psoriasis yezipikili.
- I-Herpes.
- Ukulimala nokushisa. Ngokuvamile, i-psoriasis ingathuthuka endaweni eyalimala yesikhumba, futhi phakathi kwezimbangela ezikhona kubandakanya ukushisa kwelanga . Lesi sici ngokuvamile sibangela ukuthuthukiswa kwe-psoriasis ezindaweni ezivulekile zesikhumba nasenhloko.
- I-Seborrhea. Ngokuvamile kubangelwa ukuthuthukiswa kwe-psoriasis esikhwameni.
Kumele kuqaphele ukuthi ukusebenza ngamakhemikhali anonya, ukuhlanza kanye ne-detergents kungenye yezizathu zokuthuthukisa i-psoriasis ezandleni.