My husband said that his urine are having blood and sand like thing, what is that please answer thanks?

This needs an: in-person medical evaluation soon. Medical history, physical exam, labs and possibly radiographic studies would be used to make an accurate diagnosis. Take care.

Maybe kidney stone: Have your husband and his urine checked. He may have passed a kidney stone. It is possible there may be more. He should be checked for infection and possibly blockage of his kidney. All the best.