وفر 50٪ من خلال الاشتراك السنوي في مجرة واحصل على تصفح لا محدود لأفضل محتوى عربي على الإنترنت.
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هو خلل في تثبيت الكالسيوم والفوسفور في العظام مما يجعلها لينة وتأخذ شكل مقوس عند بعض الاطفال خصوصا في فترة النمو،لذلك ينصح المواليد بالحصول على فيتامين د المفيد في ترسيب الكالسيوم في العظام عبر التغذية الجيدة والتعرض لاشعة الشمس.يظهر الكساح احيانا ععند الاطفال الذين يعتمدون على حليب الام بشكل كبير وفترة طويلة لأنه لايحوي فيتامين د بشكل كافي.
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