When a baby starts eating solid foods the solid foods can lead to constipation in your baby because the solid foods put a strain on your babies digestive tract that is still developing.
It's normal for a baby to become constipated when eating solid foods.
If your baby becomes constipated, use whole wheat or barley cereal instead of rice cereal and avoid bananas and sweet potatoes, which are constipating.
All the fruits which begin with “P” (prunes, plums, pears, peaches) will help soften your baby's stool, so give them often if your baby is having hard stools.
In some cases tight diapers can cause a baby or toddler to become constipated but it's rare that it's the cause.
Tight diapers on your baby or toddler should not cause constipation.
However when the diaper is too tight then it can cause the baby or toddler to become uncomfortable cause rashes and red marks around the child's waist.
Tight diapers can also make it hard for the baby or toddler to move around especially if they are walking it can prevent them from sitting down or bending over easily.
So the diaper should not be too tight anyway and if the diaper fits tight then you may need to change diaper sizes and go up a size larger in diapers.
You should be able to fit 2 fingers easily in the diaper waistband between the diaper and the child's waist.
Your baby or toddler may not be getting enough fluids which can lead to constipation.
Most cases of baby constipation or toddler constipation go away on their own within a week or so but if not you should take the baby or toddler the doctor.