If you hold your pee for too long, it can lead to several health issues. The immediate effect is discomfort and pain as the bladder becomes overly full. Frequent or prolonged holding can strain and weaken bladder muscles, making it harder to fully empty the bladder in the future. This can create a cycle of residual urine, increasing the risk of urinary tract infections (UTIs) due to bacterial growth. Long-term consequences of habitually holding urine include bladder shrinkage, overactive bladder symptoms, and in some rare cases, urinary retention where the bladder muscles cannot relax to release urine. Very rarely, the bladder can rupture if overly stretched, which is a medical emergency. Other possible effects include abdominal discomfort, bladder stones, and kidney problems if urine backs up into the kidneys. Generally, it's safest to urinate when the urge arises to avoid these complications. If difficulty urinating or pain occurs, consulting a physician is advised, as treatment options exist to restore normal bladder function.