Hello Thanks for query . Based on the fact that you have posted you are unable to retract your foreskin completely over glans penis hence unable to perform sexual intercourse with your wife . This is what is called as Phimosis . During sex the foreskin gets retracted over glans penis and acts like a sleeve during forward and backward movements resulting into stimulation of glans penis which is the key factor in getting sexual satisfaction . The only best treatment option is to get circumcised . This is a simple surgery done under local anaesthesia as a out patient procedure and offers permanent cure and helps to have enjoyable sex for rest of the life.