my baby is 3 rs month running with 3.8kg body weight... he is premature baby. he is doing potty once in a week and he is straining a lot all the day to poo.. suggest what shall I do

A. It’s completely normal for kids to have constipation in this way don’t worry about it if the child is too much discomfort you can put a suppository into the anal region of the child otherwise there is no issue because it’s completely normal for kids not for even 10 days at a stretch