Rosie and Norman have both given you good answers . Yes your wife could have a health issue , both of you should have a complete physical rule out any health issues . If she receives a clean bill of health then there's other reasons . And with all due respect the problem in your marriage is not the lack of physical intimacy . Intimacy is a direct reflection of the state of your relationship . Other problems in your relationship with your wife is the cause for the lack of intimacy . When a woman loves a man and she feels and knows he loves , respects , values and cherish's her, she wants to make love with him , she wants to please him and willingly gives herself to him heart , body , mind and soul . Intimacy to us women starts in our head , something is not right in your relationship outside of the bedroom . Communication is the key here , find out what the real problem is in your relationship and the intimacy problem will solve itself . Seek professional help if need be , find out what is going on in your wife's heart and head in relationship to you . I hope you save your marriage .