my baby is 7month old now but when ever he poop he cry a lot ,stool was dry don't know what to do ,please suggest

A. Infant constipation often begins when a baby starts eating solid foods. If your baby seems constipated, consider simple changes to your infant's diet: Water or fruit juice. Offer your baby a small amount of water or a daily serving of 100% apple, prune or pear juice in addition to usual feedings.