龟头、包皮红肿是男孩子非常多见的病变,许多男孩对此又羞又怕,有些家长也非常担心。那么,龟头为什么会发生红肿呢?男孩子龟头或者龟头包皮发生红肿大致有三种情况:一、血管性水肿。与荨麻疹一样,是龟头对食物、药物或者昆虫叮咬所引起的急性过敏反应。血管性水肿可以仅仅发生在龟头上,也可以与全身的荨麻疹同时发生。儿童易患龟头水肿。发病时,可见龟头外包皮 Glans, foreskin swelling is a very common disease in boys, many boys are ashamed and afraid of this, some parents are also very worried. So, why the glans swollen it? Boy glans or glans circumcision occurs in three cases: First, angioedema. Like urticaria, it is the acute allergic reaction the glans causes to food, medicine or insect bites. Angioedema can occur only in the glans, but can also occur with systemic urticaria. Children prone to glans edema. Onset, we can see the glans outside the foreskin