Brown period blood can be a sign of older blood that has had more time to oxidize, resulting in a darker hue
. It can also be a sign of implantation bleeding, which is an early sign of pregnancy
. In some cases, brown blood could even be left over from your previous period
. However, if brown period blood is accompanied by other symptoms such as itching, foul odor, fever, pain, periods that last longer than seven days, heavy bleeding, or gray discharge, it could indicate an underlying health condition such as cervicitis, vaginitis, infection, or uterine fibroids
. It is important to talk to a healthcare professional if you experience brown period blood with any of these symptoms.