Thank you for your query on Healthcare Magic.
is common in some children around this age group which is known as functional constipation.
I advise you to follow the following steps to get rid from the problem.
1.Give plenty of water and oral fluids.
2. Increase dietary fiber
in his diet by adding fruits, vegetables, and leafy vegetables his regular daily diet.
3. Encourage him to sit in toilet daily for 10 to 15 minutes.
4.During the time of passing hard stools you can give a oral stool softner like lactulose
syrup in prescribed dose for 3 to 5 days.
Hope I have answered your query.