Having narrow foreskin means not being able to pull the foreskin back over the eyelid. Up to the age of school it is common to not be able to withdraw the foreskin. Usually, no care is needed as the foreskin can usually be retracted when the child reaches school age.
Here you can read about various foreskin problems.
Balanitis is an infection of the foreskin. It is most common during the first years of life. Balanitis is due to the fact that there has been too much of the bacteria that is also usually found between the ulcer and the foreskin or that it has been difficult to keep clean there.