The signs can vary. Some people with the chronic form have a hard time starting the flow of urine. Some have a weak flow once they start. Others may feel the need to go but can’t start. Others have to go a lot, while others still feel the need to go right after going. You may “leak” urine when you aren’t going because the bladder is full. With the acute form, you’re all of a sudden not able to go at all, or only able to go very small amounts. This occurs even though you have a full bladder. See a healthcare provider right away if this happens to you.