Uterine fluid is divided into physiological and pathological. Usually the fluid disappears in 3-7 days during menstruation, while for the fluid formed after uterine operations, it can usually be eliminated in 1-2 weeks with active treatment. There are many causes of uterine effusion and the time for its elimination varies depending on the cause. The exact number of days it takes to clear up the accumulation of blood from the endometrium that is exfoliated during a woman’s menstruation is determined by the duration of her menstrual bleeding, which is mostly 3-7 days. In contrast, the main causes of pathological uterine fluid formation are endometritis, and cervical canal adhesions, blockage, and genital malformations. The clinical management of effusion differs from one etiology to another, and the elimination time varies. In the case of uterine cavity operations resulting in effusion, most of them can be eliminated in 1-2 weeks after active symptomatic treatment. In contrast, uterine effusion caused by inflammatory effusion can be eliminated in some patients in 2-4 weeks by giving anti-inflammatory treatment. Therefore, for patients with uterine effusion, it is recommended to visit a specialized hospital, where the doctor will determine the relevant causes and provide active treatment according to medical advice.