Chigoba cha mimba chimawonetseredwa ndi mdima wochepa, mawanga a bulauni omwe amawonekera pa nkhope, makamaka pamphumi, mphuno, cheekbones ndi pamwamba pa milomo. Chigoba cha mimba nthawi zambiri chimawonekera kuyambira mwezi wa 4 wa mimba, nthawi yadzuwa, koma sichigwira ntchito kwa amayi onse apakati. Ku France, 5% ya amayi apakati angakhudzidwe ndi chigoba cha pakati⁽¹⁾, koma kufalikira kumasiyana kwambiri pakati pa zigawo ndi mayiko.

Chigoba cha mimba ndi chifukwa cha kupanga kwambiri melanin (pigment udindo mtundu wa khungu) ndi melanocytes (maselo secreting melanin) mu mkhalidwe hyperfunction. Kuwunika kwa histological kwa mawanga a pigment kumawonetsa kuchuluka kwa ma melanocyte komanso mphamvu zawo zopanga melanin.⁽²⁾. Kuonjezera apo, kafukufuku waposachedwapa wasonyeza kuti poyerekeza ndi khungu lathanzi, zotupa za melasma zimakhalapo kuwonjezera pa hyperpigmentation kuwonjezeka kwa vascularization ndi elastosis.⁽³⁾.

Sitikudziwa ndendende limagwirira pa chiyambi cha zosintha izi, koma zatsimikiziridwa kuti zimachitika pa yabwino majini nthaka (phototype, mbiri banja). Zimayambitsidwa ndi dzuwa, kusiyana kwa mahomoni ogonana - pamenepa pa nthawi ya mimba estrogen ndi progesterone - ndipo nthawi zambiri zimakhudza mitundu yakuda yakuda.^{(4) (5)}.

Pofuna kupewa chigoba cha mimba, ndikofunikira kuti mudziteteze kudzuwa popewa kuwonekera kulikonse, kuvala chipewa ndi / kapena kugwiritsa ntchito chitetezo champhamvu cha dzuwa (IP 50+, kukonda zosefera zamchere).

Mu Kufooketsa Tizilombo toyambitsa Matenda, ndizotheka kutenga ngati njira yodzitetezera Sepia Officinalis 5 CH pa mlingo wa 5 granules patsiku pa mimba.⁽⁶⁾.

Mu aromatherapy, onjezerani dontho limodzi la mafuta ofunikira a mandimu (organic) ku kirimu chake chausiku⁽⁷⁾. Chenjezo: mafuta ofunikira a mandimu kukhala photosensitizing, ayenera kupewedwa masana.

Chigoba cha mimba nthawi zambiri chimabwerera m'miyezi yotsatira, koma nthawi zina chimapitirira. Kuwongolera kwake kumakhala kovuta. Amaphatikiza mankhwala ochotsa khungu (hydroquinone kukhala molekyulu yofotokozera) ndi ma peel amankhwala, ndipo mwina ngati mzere wachiwiri, laser.⁽⁸⁾.

M'masiku akale, zinali chizolowezi kunena kuti mayi woyembekezera kuvala chigoba cha pakati akuyembekezera mwana wamwamuna, koma palibe maphunziro asayansi omwe adatsimikizira chikhulupiriro ichi.