system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come after giving birth women have trouble holding their pee?
gpt
After delivery, women will fairly often have trouble with urinary continence (holding their pee) due to the weakened state of various muscles of the abdominal and pelvic regions. Additionally as the pelvic and abdominal muscles (hopefully) return to their original state along with the internal organs, the freshly deflated uterus tends to sit on the bladder, increasing pressure and making it harder to hold urine. It usually gets better with time, from several weeks to several months, depending on age and the number of successive pregnancies, but every woman is different. Lingering hormonal changes can cause constipation and additional pressure on the bladder as well.

It is possible to retrain the bladder and related muscles with kegel (pelvic floor) exercises and by intentionally using the restroom more often than needed and slowly increasing hold time between visits to the restroom. Constipation can be addressed with dietary changes and sufficient fluid intake.