Well their feces are fairly solid and formed really but if you are concerned that it's too dried out you might want to check that the snake is hydrated properly. Does it have constant access to a fresh bowl of water? Is it's enclosure in the proper range for humidity (50-60%)? If you very gently pinch a bit of skin on it's lower body does it snap right back or "tent up" for a few moments? Does the snake look healthy...nice and chunky with tight healthy skin or is it sort of thin with saggy, loose skin?

Remember if you have any concerns about the health of your snake, no one online can do anything but encourage you to contact a good vet experienced with herps.