Coughing and bleeding from the lower body are not necessarily related. If bleeding occurs in the lower body, it is considered to be due to pregnancy, if pregnancy has been ruled out, it is necessary to consider whether it is due to ovarian ovulation, or endometrial and cervical lesions, such as endometrial polyps, cervical polyps, or endometrial and cervical pre-cancerous lesions, as well as due to the cervical irritation of the vagina caused by having had sexual intercourse in the previous two days. In the course of this bleeding, if there is a cough, increased abdominal pressure, or a sudden change in position, a small amount of blood can accumulate in the vagina, creating the illusion of a connection between the cough and the bleeding in the lower part of the body. There is also a very rare disease called trophoblastic tumor of the chorionic villus. The malignant tumor choriocarcinoma is very susceptible to blood metastasis and reaches the lungs through the blood circulation resulting in nodules, shadows in the lungs, and lung lesions that may also cause coughing. Meanwhile, because choriocarcinoma is a trophoblastic tumor related to pregnancy, it can also cause vaginal bleeding. Cough and vaginal bleeding may be the presence of malignant tumors, therefore, it is necessary to differentiate between them, and consult a doctor for appropriate diagnosis and treatment when necessary.