For the gastric mucosa, red alternating with white, large piece in pale, mucosa getting thinner, course and dry, little secretion, with rimose changes, the colour of the mucosa getting lighter, visible vessel net under the mucosa; 胃粘膜红白相间,大片状苍白,粘膜变薄,粗糙干燥,分泌物少,呈龟裂样改变,粘膜颜色变淡,可透见粘膜下小血管网;