Kungani izingane ezizalwa zikhubazekile?

Ingane enempilo nejabule yiphupho lomama. Noma kunjalo, ngokusebenza - hhayi njalo njalo. Ngezinye izikhathi kwenzeka ukuthi kakade kusukela ekuzalweni kwengane inezinkinga zentuthuko eyanciphisa amandla akhe, futhi ngezinye izikhathi ayihambisani ngokuphelele nokuphila. Ngakho-ke, ngisho nangaphambi kokuzalwa kwabafazi abakhulelwe banesithakazelo embuzweni wokuthi kungani izingane zizalwa zikhubazekile.

Yiziphi izimbangela zokuzalwa kwezingane ezikhubazekile?

Ngokwezibalo, cishe u-3% wazo zonke izingane ezizalwa emhlabeni zizalwa ngezimo ezingavamile. Nokho, eqinisweni, ukukhubazeka okuthuthukiswayo kuvame kakhulu. Imvelo yakhelwe ngendlela yokuthi, ezimweni eziningi, izingane ezinezinkinga zokuthuthukiswa azibonakali nhlobo; bafe kusenesikhathi sokuthuthukiswa. Ngakho-ke, cishe u-70% wazo zonke izikhipha okukhiphayo ngesikhathi sokufika emavikini angu-6 kwenzeka ngenxa yezimo eziphuthumayo zofuzo.

Ukuze uqonde ukuthi yiziphi izingane ezizalwa ngeziphambeko nokuthi yiziphi izimo ezenzekayo, kubalulekile ukwazi ngezizathu ezingenzeka zokuthuthukisa ukwephulwa. Zonke zazo zingahle zihlukaniswe ngokomzimba zibe: zangaphandle (exogenous) kanye zangaphakathi (ezingapheliyo).

Izizathu ezingaphandle zihlanganisa lezo zinto eziye zathonya umzimba kusuka ngaphandle, ziye zaholela ekuthuthukiseni ukwehluka. Kungaba:

• umthelela omubi wendawo;
• ukuhlukunyezwa kwesisu kwabesifazane abakhulelwe;
• ukutholakala kwezifo ezingelapheki (isib. i- toxoplasmosis );
• ukusetshenziswa kwemithi.

Phakathi kwezici eziphelile ekuqaleni kukhona ukungasebenzi kwemvelo. Ukubukeka kwabo kuthonywe ngqo yi:

• iminyaka yabazali;
• ukuzalwa - uma abazali behlukana ekuthuthukiseni, khona-ke isabelo samathuba okuba njalo kubantwana kuhle;
• umthelela omubi wezinto eziphilayo (ukuhlala ezindaweni ezimboni, ukusebenza emabhizinisini embonini ye-radiological, njll).

Ngakho-ke, kaningi, omama abalindelekile banesithakazelo embuzweni wokuthi ngabe ingane eneziphambeko ingazalwa uma uyise eneminyaka engu-17 ubudala. Njengoba sekushiwo kakade, iminyaka yabazali ayinayo ithonya lokugcina ekuthuthukiseni i-fetus. Ngenxa yokungapheleli ngalesi sikhathi, izinhlelo zokuzala izisilisa nabesifazane, amathuba okuvela kwezingane ezinokukhubazeka zikhulu.

Futhi, uma ubaba eseneminyaka engama-40 ubudala, ingane eneziphambeko ingase izalwe, futhi ayixhomekile ukuthi unesifo sezempilo noma cha. Iqiniso liwukuthi ngokusho kocwaningo lwabesosayensi baseNtshonalanga, kusemadodeni abaneminyaka yobudala ukuthi ingozi yokukhubazeka kwama-germ cells akhula, okuyinto ekugcineni kungaholela ekuphambukeni kwezingane.