Dr. Levine answers: The typical injury occurring with biking or any straddle sport is an injury to the vascular or nerve supply to the penis which can result in erectile dysfunction and/or a numb penis. The fact that there is pain may indicate a nerve entrapment. If the deformity of the penis is new, there may also be scarring of the penile tissues resulting in the curvature. It appears that there may be both an erectile dysfunction problem here, which may be due to nerve and/or vessel injury, as well as a possible Peyronie’s problem. Clearly, the best advice here is to see a local urologist for proper evaluation.