Constipation in 4 years old kid

What is the treatment of constipation ?
If your child suffer from constipation you have to do clinical assessment in the nearest medical center for any abnormal signs and symptoms and you have to treat any underlying condition such as High fiber diet include vegetables and fruit and you should eat fewer food that contain low fibers as meat product or fast food and to drink water as much as you can . You should alsoe Use laxative as stimulant or fiber supplement or osmotic such as Glycerin suppository
What are the investigations required for constipation?
Clinical assessment in the nearest medical center for abdominal pain and anal pain or other symptoms with investigations such as US or Xray abdomen for Intestinal obstruction .
What are the causes of constipation ?

• Low water intake
• Ameoba 
• Being dehydrated
• Low fiber diet
• Bowel obstruction
• Hyperparathyroidism
• Other causes

What to do at the moment ?
Clinical assessmen in the nearest medical center .