Detailed answer

Dark spots on the skin, also known as hyperpigmentation, are usually caused by an overproduction of melanin, the pigment responsible for skin coloration. Kidney infections typically present with symptoms such as frequent urination, pain in the back or side, fever, and changes in urine color or odor. However, in some rare cases, certain underlying kidney conditions or complications may lead to skin manifestations including dark spots. It is important to consult with a healthcare professional to determine the underlying cause of dark spots and to rule out any potential kidney-related issues. They will be able to evaluate your symptoms, run appropriate tests, and provide an accurate diagnosis and suitable treatment plan if necessary.