In various embodiments methods and devices are provided for regulating bladder function in a subject after a spinal cord and/or brain injury. In certain embodiments the methods comprise applying a pattern of electrical stimulation to the Lumbosacral spinal cord at a frequency and intensity sufficient to initiate micturition and/or to improve the amount of bladder emptying. In certain embodiments the electrical stimulation is at a frequency and intensity sufficient to improve the amount of bladder emptying (e.g., to provide at least 30% emptying or at least 40% emptying, or at least 50% emptying, or at least 60% emptying, or at least 70% emptying, or at least 80% emptying, or at least 90% emptying, or at least 95% emptying.