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在新生儿期已存在有生理性排尿的节制,但排尿次数较多。最初几个月内排尿纯属反射性的。白天排尿控制较夜间为早。5～6个月时逐渐形成条件反射,开始先在觉醒时会表示排尿,到1岁末方可有效地训练对排尿的控制。女孩较男孩容易控制排尿。根据Butimore资料,2～3岁的女孩中45%已能控制排尿,而同年龄的男孩仅为32%。若在4～5岁以后仍不能控制排尿即称为遗尿症。按这个定义,估计美国有5百万遗尿儿童。Bloomfield等对5,386名小儿自出生起进行随访,发
There are physiological control of urination during the neonatal period, but more urination. Urination is purely reflex in the first few months. Urination control during the day than early night. 5 to 6 months when the gradual formation of conditioned reflexes, the first start in the wake of urination will be expressed until the end of 1-year-old can be effectively trained to control urination. Girls tend to control urination more easily than boys. According to Butimore, 45% of girls between the ages of 2 and 3 have been able to control urination, compared to just 32% of boys of the same age. If in 4 to 5 years old still can not control urination is called enuresis. By this definition, it is estimated that 5 million enuresis children in the United States. Bloomfield and other 5,386 children from birth to follow-up, hair