Ovarian cyst cavity should refer to the cavity of ovarian cysts, ovarian cysts are benign in most cases, the cavity is oozing fluid, which may be inflammatory exudate. If you have abdominal pain, you can apply anti-inflammatory drugs for anti-inflammatory treatment. Clinically, you often choose broad-spectrum antibiotics, such as cephalosporins combined with tinidazole, for about 10 days, and then review the pelvic ultrasound 1 week after stopping the medication, most of the ovarian cysts will gradually shrink and disappear. If the ovarian cysts do not shrink, you need to have regular pelvic ultrasound examinations, once every 3 months, to observe the growth of the ovarian cysts. If the ovarian cysts grow slowly or tend to be stable, regular review is fine. If the cysts gradually increase in size and exceed 5 cm, causing clinical symptoms such as abdominal pain, abdominal distension, back pain, frequent urination, urgent urination, incomplete urination and constipation, surgical treatment is needed to remove and cure the ovarian cysts.