Brain tumor surgery during pregnancy has a great concern in Egypt now days. High preva‐ lence of brain tumors during pregnancy y was noticed. There is no accurate statics for the prevalence. The most common tumors are pituitary tumors, menegioma, gliomas, metastis of breast carcinomas. Many problems affects anesthesia, as the interaction between many differ‐ ent factors, as the physiological ch...