Some times I have a mild burn while urinating and all i've been drinking is coke and i've had this since i was younger so i was wondering if it was caused by coke or not. Only once when i was in the 4th grade my pee was burning like heck and hardly any would come out but i drank some water and then i was back to normal. This one time in the 4th grade was the only time it was that bad. I was wondering could this just b something coke causes and i just need to drink more water???