Polycystic ovary syndrome early pregnancy with brown discharge but normal indicators may be the result of fertilized egg implantation, preeclampsia, ectopic pregnancy and other reasons. 1. Fertilized egg implantation: routinely, the implantation of the fertilized egg will not appear obvious abdominal pain, vaginal bleeding and other symptoms. However, a very small number of people may experience a small amount of vaginal bleeding due to a variety of factors, such as their physical condition, but all other tests are normal. 2. Pre-eclampsia: Early pregnancy with polycystic ovary syndrome with brown discharge but normal indicators may be due to embryonic factors, or external environment and other factors, leading to pre-eclampsia. Such patients will be in the early stages of pregnancy, brown discharge, but the cervical opening is closed, usually no discharge of pregnancy. 3. Ectopic pregnancy: In the early stages of pregnancy, if the fertilized egg has not been deposited in a part of the uterine cavity, the initial blood indexes can be shown as normal. However, as time changes and the fertilized egg grows, there will be brown discharge, blood HCG (human chorionic gonadotropin) is not normally doubled, and the patient may also be accompanied by a feeling of anal distension, abdominal pain, and so on. There are more reasons why there is brown discharge but normal indicators in early pregnancy with polycystic ovary syndrome, and it is recommended to seek medical attention in time.