There are more reasons why menstruation is delayed for 4 days with brown discharge, which may be caused by pregnancy implantation bleeding, biochemical pregnancy, impending menstruation and so on.
1. Bleeding from pregnancy implantation: After the embryo enters the uterine cavity, it will break through the uterine lining and implant at the time of implantation, and there may be a small amount of bleeding at this time, so there will be brown secretions.
2. Biochemical pregnancy: If the embryo does not implant successfully after pregnancy, there may be a small amount of bleeding, and then menstruation will come.
3. Menstruation is about to come: when you just have your period, due to the slow shedding of the uterine lining, the bleeding is small, and the menstrual blood is stagnant in the endocervical opening for a long time, which may form a brownish secretion, and as the menstrual blood increases in size, it becomes the color of the menstrual blood, and so on.
The brown discharge can also be seen in other causes, it is recommended to consult a doctor in a timely manner, improve the relevant examination, under the guidance of the doctor to clarify the cause of the disease, targeted treatment, to avoid delay in the condition.