Cov kev tshawb fawb tsis ntev los no tau ua rau pom qhov sib txuas ntawm kev raug rau ultraviolet (UV) rays thiab kev loj hlob ntawm cov teeb meem pigmentation ntawm daim tawv nqaij. Cov kws tshawb fawb tau paub ntev lawm tias UV hluav taws xob los ntawm lub hnub tuaj yeem ua rau kub hnyiab thiab ua rau muaj kev pheej hmoo ntawm mob qog noj ntshav ntawm daim tawv nqaij. Txawm li cas los xij, ntau cov pov thawj qhia tias cov rays no kuj tseem tuaj yeem ua rau muaj ntau dhau ntawm melanin, cov pigment uas muab nws cov xim rau daim tawv nqaij, ua rau pom cov pob tsaus lossis cov thaj ntawm daim tawv nqaij.
Muaj ib qho teeb meem ntawm daim tawv nqaij uas feem ntau pom tias muaj feem cuam tshuam nrog kev raug UV yog melasma, tseem hu ua chloasma. Qhov teeb meem no yog tshwm sim los ntawm kev tsim cov xim av lossis greyish ntawm lub ntsej muag, feem ntau yog cov qauv sib npaug, thiab feem ntau pom muaj rau cov poj niam. Txawm hais tias qhov ua rau muaj melasma tsis paub meej, cov kws tshawb fawb ntseeg tias cov tshuaj hormones, genetics, thiab UV hluav taws xob yog cov yam tseem ceeb uas ua rau muaj.
Lwm hom kev puas tsuaj ntawm cov xim uas cuam tshuam nrog kev raug UV yog post-inflammatory hyperpigmentation (PIH). Qhov no tshwm sim thaum daim tawv nqaij o, xws li hauv rooj plaub ntawm pob txuv lossis eczema, thiab cov melanocytes hauv thaj chaw raug mob tsim cov melanin ntau dhau. Yog li ntawd, cov xim tsis zoo lossis cov pob yuav tseem nyob ntawm daim tawv nqaij tom qab qhov o ploj mus.
Qhov kev sib raug zoo ntawm UV hluav taws xob thiab cov teeb meem pigmentation qhia txog qhov tseem ceeb ntawm kev tiv thaiv daim tawv nqaij ntawm lub hnub lub teeb phem. Qhov no tuaj yeem ua tiav los ntawm kev hnav khaub ncaws tiv thaiv, xws li lub tsho ntev thiab lub kaus mom, thiab siv tshuaj pleev thaiv hnub nrog SPF tsawg kawg 30. Nws tseem ceeb heev kom tsis txhob raug tshav ntuj ntev, tshwj xeeb tshaj yog thaum lub sijhawm siab tshaj plaws thaum UV index siab.
Rau cov neeg uas twb muaj teeb meem ntawm daim tawv nqaij xim lawm, muaj cov kev kho mob uas tuaj yeem pab txo qhov pom ntawm cov pob tsaus lossis thaj ua rau tawv nqaij. Cov no suav nrog cov tshuaj pleev uas muaj cov khoom xyaw xws li hydroquinone lossis retinoids, tshuaj peels, thiab kev kho mob laser. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum ua haujlwm nrog kws kho mob tawv nqaij kom txiav txim siab qhov kev kho mob zoo tshaj plaws, vim tias qee qhov kev kho mob yuav tsis haum rau qee hom tawv nqaij lossis yuav ua rau muaj kev phiv tsis zoo.
Txawm hais tias kev sib raug zoo ntawm UV hluav taws xob thiab cov teeb meem pigmentation tuaj yeem ua rau txhawj xeeb, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias tsis yog txhua hom pigmentation yog qhov ua rau muaj kev phom sij lossis qhia txog teeb meem kev noj qab haus huv loj dua. Piv txwv li, freckles, uas yog cov pawg melanin uas tshwm sim ntawm daim tawv nqaij, feem ntau tsis muaj teeb meem thiab tsis tas yuav kho.
Hauv kev xaus, kev sib txuas ntawm UV hluav taws xob thiabcov teeb meem pigmentationqhia txog qhov tseem ceeb ntawm kev tiv thaiv daim tawv nqaij ntawm lub hnub lub teeb phem. Los ntawm kev ua raws li kev ceev faj yooj yim xws li hnav khaub ncaws tiv thaiv thiab siv tshuaj pleev thaiv hnub, cov tib neeg tuaj yeem pab txo lawv txoj kev pheej hmoo ntawm kev muaj teeb meem pigmentation thiab lwm yam teeb meem ntawm daim tawv nqaij uas cuam tshuam nrog lub hnub. Yog tias muaj kev txhawj xeeb, nws yog ib qho tseem ceeb uas yuav tsum sab laj nrog kws kho mob tawv nqaij kom txiav txim siab txoj kev kho mob zoo tshaj plaws.
Lub sijhawm tshaj tawm: Plaub Hlis-26-2023
