Since there are so many kinds of kidney disease, whether or not kidney disease can be cured will depend on what kind of disease kidney disease someone has. If another medical condition or trauma has caused an acute and sudden loss of kidney function, the kidney may bounce back to normal function, but it could be permanently damaged.
If kidney disease is a chronic, slowly progressing disease, it generally does not have a cure. Treatment however, can be helpful in preserving kidney function and helping you maintain your quality of life. A well-matched donor kidney can significantly improve your prognosis and lengthen your life. You should talk to your doctor about your specific condition.