In stage 4 of chronic kidney disease, you have severe, irreversible damage to your kidneys. However, there are steps you can take now to slow or prevent the progression of kidney failure. There are five stages of chronic kidney disease. Keep learning more ...

The proscenium stage: The proscenium stage is distinguished by a frame or arch that separates the stage from the rest of the auditorium. It is typically fairly deep and often includes a part known as an apron or forestage that extends out past the arch ...

In stage 4 melanoma, the cancer has spread from its place of origin to other parts of the body, such as the lungs, brain, liver, spinal cord, bone, digestive tract, soft tissue, and distant lymph nodes. Melanoma occurs when the pigment-producing cells ...