Cranberry is usually known to help treat and prevent urinary tract infections when taken in a juice form. There are also cranberry supplements that come in pill form that may be helpful with preventing urinary issues. Cranberry can be used to help prevent urethritis, the inflammation of the urethra. It can also be used to help prevent cystitis, the inflammation of the bladder, which can cause urinary tract infections (UTIs). Cranberry can be taken as a juice, in pill form, as straight berries, and as an extract. Overall the cranberry fruit is a great option for cleansing out the urinary tract. It can help with urinary tubules and flushing them out as well as preventing urinary stones. When taken long term, cranberries are good for preventing the build up of calcium carbonate in the urinary tract which can lead to urinary complications. If you have been diagnosed with kidney disease, you should only consume or use cranberries under professional medical supervision.