Medical problems. Some liver and kidney disorders and a few urinary tract infections can switch urine darkish brown. So can bleeding In the system referred to as a hemorrhage. A bunch of ailments that predominantly affect the skin or even the nervous system, termed porphyria, also might cause brown urine. https://kingswoodhomes.uk.com/news/kingswood-homes-submits-planning-application-for-winstanley-hall-restoration-and-development/