Ten-year-old girls always wet the bed may be caused by genetic factors, acute urinary tract infection disease, neurogenic bladder and other factors. 1. Genetic factors: ten-year-old girls always wet the bed, may be related to genetic factors, if the father and mother have enuresis, the risk of the child suffering from enuresis is much higher than others. 2. Acute urinary tract infection disease: ten-year-old girls do not pay attention to physiological hygiene, acute urinary tract infection disease, such as acute cystitis, may lead to acute incontinence, will often wet the bed, accompanied by pain in urination, urinary frequency, urinary urgency and other symptoms, can be clearly diagnosed by urine routine, urine culture and other tests. 3. Neurogenic bladder: may be related to craniocerebral tumors, hydrocephalus and other factors, can lead to damage to the nerves innervating the bladder, it will cause bladder dysfunction, so that the ten-year-old girl frequent leakage of urine. Ten-year-old girls always wet the bed, there may be other reasons, parents are advised to take their children to the doctor for examination and treatment to prevent the condition from worsening.