Why did frequently urine pass in four years baby...

What causes frequent urination in four years baby girl?
Drinking plenty of water
diabetes insipidus
Urinary tract infections
Bladder problems
What tests are needed to know the cause of frequent urination?
Clinical examination
Full blood count
blood sugar
Urine examination
water deprivation test
kidney function test
What is the treatment of frequent urination in four years baby girl?
Sugar regulation
Minimize drinking water at night and increase it in the morning
Reduce the intake of salts
Reduce soda, stimulants and caffeine-containing substances such as tea, coffee and chocolate
If the cause is due to urinary infections treatment is done by:
Cefuroxime 250 mg 5cc twice a day