Final answer:
The causes of postpartum hemorrhage are often categorized as the "4 Ts": Tone, Trauma, Thrombin, and Tissue.
Step-by-step explanation:
Postpartum hemorrhage (PPH) is a potentially serious and life-threatening condition characterized by excessive bleeding following childbirth. It is a major cause of maternal morbidity and mortality worldwide. PPH can occur both immediately after delivery and within the first 24 hours after childbirth.
The causes of postpartum hemorrhage are often categorized as the "4 Ts": Tone, Trauma, Thrombin, and Tissue. Therefore, all of the options listed are one of the 4 Ts, and none of them are NOT one of the 4 Ts.