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誘發胃癌的原因包括哪些?如何早期察覺胃癌?

原標題:誘發胃癌的原因包括哪些?如何早期察覺胃癌?

免疫力與癌細胞就像天平的兩端,如果免疫力低下或者患有自身免疫缺陷,身體抗癌能力也會相應下降。在胃癌患者中,基因缺陷也是考量因素之一,側面說明遺傳問題在胃癌發生發展中的潛在影響。引申出,胃癌或腫瘤患者中,一部分為易感者。

誘發胃癌的原因包括哪些?

誘發胃癌的原因有很多,主要有遺傳和后天環境共同作用。比如,如果人體缺少抑制癌癥的基因,可以出現家族聚集的胃癌高發表現,這就是胃癌易感人群;胃癌還與后天的飲食、生活環境息息相關,比如特別喜歡吃霉變或腌制食物,亞硝酸鹽也可以增加胃癌發生。

胃癌還與幽門螺桿菌感染、長期吸煙有緊密關聯性。小番健康提醒,導致胃癌病理原因較復雜,綜合有以上幾種。例如,當經過醫院發現的萎縮性胃炎伴有腸化、胃體顯著萎縮的惡性貧血,都可以進展為胃癌。

如何早期察覺胃癌?

1、黑便和出血表現

消化道出血,與腫瘤破裂出血有關系,通過便血或醫院隱血測試陽性者,有嘔血、黑便,應該及時到醫院查明原因進行治療。小番健康提醒,可以留意一些含有特異性表現,比如原先就患有胃病,突然出現的貧血、體重快速下降;胃潰瘍原有的疼痛規律突然改變或消失。

2、上腹部不適

主要有嘔吐、惡心、飽脹感等,也是早期胃癌表現。雖然,這些癥狀無特異性,如果為腫瘤引起,主要原因是梗阻或者腸胃紊亂,患者會感覺到進食不是那么容易,也應該及時到消化內科。返回搜狐,查看更多

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