Heavy menstrual bleeding, or menorrhagia, can be a sign of underlying conditions such as uterine fibroids or endometriosis. If you experience unusually heavy periods, it's important to consult with a doctor for further evaluation and management.

Typically, a woman's period lasts about 6-7 days. If it extends beyond this timeframe with heavy bleeding, large blood clots, or excessive fatigue, it may indicate an issue that should be evaluated by a doctor to avoid potential harm.

Heavy blood loss during menstruation can lead to a decrease in red blood cells, which are responsible for carrying oxygen to the body's organs. This can make the heart work harder, leading to fatigue and potential health concerns. It's important to address excessive bleeding with a doctor to maintain overall health.

Common causes of heavy menstrual bleeding include:
1. Uterine tumors
2. Endometriosis