👉 Porphyrinuria is a condition characterized by an excessive production of porphyrins, which are organic pigments found in the blood. Porphyrins are produced by cells in the kidneys and other organs that are affected by nephrotoxic substances. The term "porphyrinuria" refers to the presence of high levels of porphyrins in the blood, which can be a sign of kidney disease or an indication of chronic kidney disease. This condition is often associated