Why is there still bloody lochia 30 days after childbirth?

Patient's question:

No

Doctor's answer:

The duration of postpartum lochia is usually around 2-4 weeks. Some may last for a month. If the vaginal bleeding is not excessive, it can be observed for a few more days. However, if the bleeding exceeds the normal menstrual flow, it is recommended to undergo an ultrasound examination to check for intrauterine blood accumulation or tissue residue.