Doctors recommend that we empty our bladders regularly, about every three hours. But we all know there are situations when this is not possible. While holding off on peeing for an hour or two won’t pose any threat to your health, you can harm your body by holding it in for too long or making a habit of peeing infrequently. In this case, your bladder can stretch to accommodate the urine. But the question is, how long can you hold it?