The three main gynecological laboratory secretions are routine examination of leukorrhea, cervical secretion plus bacterial culture, and cervical cancer screening to check whether there is inflammation and the pathogenic bacteria that cause inflammation, and whether there is cervical cancer. 1. Laboratory examination of routine leukorrhea: through routine leukorrhea examination, it can confirm whether the patient has reproductive system infection or vaginal inflammation and other diseases. 2. Cervical secretion with bacterial culture: it is mainly to check whether there is bacterial infection, including mold infection, mycoplasma infection and trichomonas infection. 3. Cervical cancer screening: cervical cancer is usually caused by human papillomavirus infection, which can easily invade the cervix and cause cervical lesions or even lead to cervical cancer. Cervical cancer screening can examine the exfoliated cells of the cervix, which can then detect whether the cervix is diseased or not. In clinical practice, it is recommended to follow the doctor’s instructions to carry out appropriate screening programs, and any discomfort should be treated actively.