Why is my period blood black, and when should black discharge be medically assessed in Europe?

Black period blood explained: oxidised blood, slow menstrual flow, hormonal changes, infection, and red flag symptoms.

In this episode, we outline common causes of dark or black menstrual discharge and how doctors distinguish normal variation from underlying conditions under EU medical guidance.

You’ll learn:

• Why older, oxidised blood appears dark brown or black

• How slow flow at the beginning or end of a period changes colour

• The role of hormonal contraception in altering bleeding patterns

• When retained blood or delayed shedding may occur

• Signs of infection, including foul odour or pelvic pain

• The difference between normal discharge and abnormal bleeding

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