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Post-surgical bleeding is a relatively common complication in surgical procedures, sometimes caused by the surgery itself, while other times it may be due to various other postoperative reasons. Depending on the situation, medically, the bleeding caused by other postoperative reasons is referred to as secondary bleeding.
Bleeding caused by the surgery itself mostly occurs on the day of the surgery within a few hours afterward and is typically known as primary bleeding, whereas secondary bleeding usually occurs around 7-10 days after the surgery.
The causes of secondary bleeding are diverse and, compared to primary bleeding, can range from mild to severe. Severe cases of secondary bleeding may even lead to hemorrhagic shock and endanger the patient's life.