Menorrhagia: This condition is characterized by abnormally heavy or prolonged menstrual bleeding, which can lead to the passage of clots. It's a common issue in women of reproductive age and can be caused by various factors, including hormonal imbalances, uterine fibroids, or the use of certain medications.

Uterine Fibroids: These are non-cancerous growths in the uterus that can cause heavy menstrual bleeding and clotting. They are common in women of reproductive age and can also cause other symptoms like pelvic pressure or pain.
Adenomyosis: A condition where tissue similar to the lining inside the uterus grows into the muscular walls of the uterus, leading to heavy bleeding and clotting during menstruation.
Hormonal Imbalance: Fluctuations in hormone levels, particularly estrogen and progesterone, can affect the menstrual cycle, leading to heavy bleeding and clotting.

Bleeding Disorders (e.g., von Willebrand Disease): Although less common, bleeding disorders can cause significant menstrual bleeding and clotting. Missing these diagnoses could lead to severe health complications if not properly managed.
Cancer (e.g., Uterine or Cervical Cancer): Though rare, cancer can cause abnormal vaginal bleeding, including heavy menstrual bleeding and clotting. Early detection is crucial for effective treatment.

Uterine Arteriovenous Malformation (AVM): A rare condition where there's an abnormal connection between arteries and veins in the uterus, potentially leading to heavy menstrual bleeding.
Inherited Coagulopathies: Rare genetic disorders affecting blood clotting, which can manifest as heavy menstrual bleeding and clotting.
Pregnancy-Related Complications: In rare cases, ectopic pregnancy or a molar pregnancy can cause abnormal bleeding, including clotting, though these typically present with other significant symptoms.