Near the end of the menstrual period, the blood can turn a dark brown or black, which WebMD states is common and not cause for alarm. What To Expect warns that brown discharge can also be an early symptom of pregnancy or indicate ovulation or perimenopause.Know More
The most common reason for abnormal brown menstrual blood is implantation bleeding, says What to Expect. It doesn't occur in every woman, but implantation bleeding is caused by the fertilized egg attaching itself to the uterine lining roughly five to 10 days after conception. Accompanying symptoms such as bloating, acne and breast swelling are often confused with premenstrual syndrome.
If the change in color only lasts for a few days, What to Expect states that this is normal. Blood darkens as it ages and it can take several days after the end of the menstrual cycle for the body to finish expelling all the blood. However, if it happens frequently, is accompanied by cramping or lasts for longer than a week, consult a doctor.
Rarely, brown menstrual flow or discharge is a symptom of illness, according to What to Expect. In these cases, it is usually accompanied by pain, fever, odor or weight gain. Very rarely, heavy brown menstrual flow and pain can indicate cervical cancer.Learn more about Menstruation
Brown menstrual blood is likely just old blood that is slowly leaving the uterus, especially if it occurs towards the end of a woman's cycle, explains WebMD. The presence of brown blood may also accompany heavy bleeding or thick clots visible in a woman's menstrual discharge.Full Answer >
Black period blood is usually just a sign that old blood is leaving the uterus toward the end of a woman's menstrual cycle, according to WebMD. It is likely not a cause for concern but can indicate in some cases that a woman has an enlarged uterus or menstrual obstruction.Full Answer >
During a menstrual cycle, the blood may become dark red or brown near the end of the cycle because the blood is older and is not being released as quickly. This is a normal color change during a menstrual cycle, explains WebMD.Full Answer >
According to WebMD, the presence of brown blood during menstruation is very common and unlikely to be cause for concern. Shades of dark brown or even black can also be expected. The reason for this color change is due to the body not releasing older blood quickly enough.Full Answer >