My baby boy is almost 1 year old. Now that he is older, do I pull back the foreskin of his penis to clean it?

Since there are conflicting answers, I went to do some research on this matter and articles have stated that it is NOT necessary to retract the foreskin of the penis as it is self cleaning. Forcing the foreskin back may cause damage to your baby's penis and may cause problems for your son. http://www.babycentre.co.uk/x1053616/how-should-i-care-for-my-baby-boys-genitals