Health issues. Some liver and kidney disorders and many urinary tract infections can flip urine dim brown. So can bleeding inside the human body called a hemorrhage. A gaggle of health problems that largely impact the pores and skin or the anxious system, named porphyria, also may cause brown urine. https://kingswoodhomes.uk.com/news/kingswood-homes-submits-planning-application-for-winstanley-hall-restoration-and-development/