Thank you for your query.
I suggest that the following investigations need to be done to come to a correct diagnosis:
1. Stool routine examination
of the whole abdomen.
The description suggested by can be due to chronic constipation
which shall be evident from the ultrasonography
. After confirming the diagnosis corrective measures can be initiated.
I hope I have answered your query to your satisfaction.
Wishing your daughter an early recovery.
Rajiv K Khandelwal