Patient's question:
NoDoctor's answer:
If it is less than 1 cm, it is considered physiological fluid, commonly seen during ovulation and early pregnancy. It can usually disappear naturally and does not require treatment. If the amount of fluid is larger, it is mostly caused by inflammation, specifically due to chronic pelvic inflammatory fluid leakage. In a few cases, it may be caused by ectopic pregnancy rupture, corpus luteum rupture, pelvic abscess, chocolate cyst, or ovarian cancer, requiring timely treatment.