Early pregnancy brown blood after abdominal pain is still more serious, pregnant women may have a miscarriage, ectopic pregnancy and other conditions, the need to consult a doctor in time to check, clear causes, targeted treatment. 1.aura miscarriage: early pregnancy brown blood after a vague pain in the abdomen, may be due to external stimuli, embryonic abnormalities, exposure to harmful substances, resulting in embryonic instability, vaginal bleeding and abdominal pain and other symptoms, if you do not timely fertility preservation treatment, vaginal bleeding may gradually increase, abdominal pain aggravated, and the occurrence of inevitable miscarriage. 2. Ectopic pregnancy: the fertilized egg is deposited outside the uterine cavity, due to the limitation of the growth environment, with the development of the embryo, there may be miscarriage, rupture and so on, if it is not treated in time, the bleeding will increase, and in severe cases, hemorrhagic shock may occur, which may pose a threat to the patient’s life. Clinical pregnant women with vaginal bleeding, abdominal pain, etc., need to consult a doctor in time for examination, so as not to delay treatment, resulting in adverse consequences.