What are the symptoms of threatened abortion in early pregnancy?

The symptoms of threatened abortion are abdominal pain, loss of appetite, lower abdominal distension, waist soreness, lack of spirit, fatigue, etc., as well as vaginal bleeding phenomenon, mainly in bright red, dark brown; if accompanied by the above symptoms, need to go to the hospital obstetric examination, if there is a phenomenon of threatened abortion, you can take progesterone to do fetal treatment.