**Question:** After tonsillectomy, secondary haemorrhage occurs on

A. 7th day
B. 14th day
C. 28th day
D. 60th day

**Correct Answer:** .

**Core Concept:** Tonsillectomy is a surgical procedure that involves the removal of the tonsils, which are part of the immune system and provide protection against infections. Secondary haemorrhage refers to bleeding that occurs after the initial primary haemorrhage has stopped.

**Why the Correct Answer is Right:** In this case, the correct answer is C. 28th day. The primary haemorrhage occurs immediately after surgery due to the traumatic injury to the blood vessels during the procedure. Secondary haemorrhage typically occurs later, usually between the 7th and 10th day, as the healing process progresses. During this phase, blood vessel walls may weaken, leading to bleeding.

**Why Each Wrong Option is Incorrect:** Let's analyze the incorrect options:

A. 7th day: This is too early, as the primary haemorrhage usually occurs immediately after surgery. Secondary haemorrhage typically occurs later, as mentioned above.
B. 14th day: Although the secondary haemorrhage may occur on the 14th day, it is not the most common time frame compared to the 28th day.
D. 60th day: This is too late, as secondary haemorrhage usually occurs within the first two weeks post-surgery.

**Why Each Wrong Option is Incorrect:**

A. 14th day: Although the secondary haemorrhage may occur on the 14th day, it is not the most common time frame compared to the 28th day. The 28th day is more likely to represent the typical time frame for secondary haemorrhage post-tonsillectomy.
B. 60th day: This is too late, as secondary haemorrhage usually occurs within the first two weeks post-surgery.
C. 28th day: While the secondary haemorrhage can occur on the 28th day, the most common time frame for this event is the 7th to 10th day, as mentioned earlier. The 28th day is less likely to represent the typical time frame for secondary haemorrhage post-tonsillectomy.

**Clinical Pearl:** A thorough understanding of the timing of secondary haemorrhage after tonsillectomy is crucial for healthcare professionals to anticipate and manage potential complications appropriately. Close monitoring and proactive management within the first two weeks after surgery can help prevent severe bleeding events.

**Why Each Wrong Option is Incorrect:**

A. 7th day: This is too early, as the secondary haemorrhage usually occurs within the first two weeks post-surgery.
B. 10th day: Secondary haemorrhage can occur later than the 10th day, but it is less common compared to the 7th to 10th day.
C. 28th day: While secondary haemorrhage can occur on the