Normal pelvic cavity can have a small amount of fluid. To do exercise with pelvic fluid, you need to choose the appropriate exercise method according to the amount of fluid. If a small amount of pelvic fluid is normal physiological and occurs during ovulation and menstruation, it will not affect exercise, and you can usually run, dance, swim, etc. Imaging examination of pelvic fluid over 20mm is pathological and may be caused by inflammatory stimulation, such as cervicitis, pelvic inflammatory disease, etc. It is better to do aerobic exercises, such as brisk walking, yoga, etc. You can also twist your hips and massage your abdomen with your hands, etc., which can promote the recovery of inflammation. If inflammation causes pelvic effusion, it needs to be treated with antibiotics reasonably under the guidance of a doctor. It is also possible to use physical therapy, such as hot compresses on the abdomen, Chinese herbal enemas, etc. It is recommended that regular ultrasound review is best to see the recovery situation. It is best not to have sex with pelvic effusion to avoid stimulating the condition and affecting the recovery of inflammation.