In case of new born the commonest cause of intestinal obstruction is :
**Core Concept**
Intestinal obstruction in newborns is a condition where the normal flow of intestinal contents is blocked, leading to severe symptoms. This can occur due to various reasons, including anatomical abnormalities, congenital conditions, or acquired conditions.
**Why the Correct Answer is Right**
The commonest cause of intestinal obstruction in newborns is **Volvulus**, which is a twisting of a portion of the intestine around its mesentery. This twisting leads to obstruction of the intestine and can cause ischemia, necrosis, and even death if not promptly treated. The volvulus is usually a result of a congenital anomaly, such as a short mesentery, which predisposes the intestine to twisting.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not specified, so we cannot comment on it.
* **Option B:** Other causes of intestinal obstruction in newborns, such as atresias, stenosis, and intussusception, are less common than volvulus.
* **Option C:** This option is also not specified, so we cannot comment on it.
**Clinical Pearl / High-Yield Fact**
Newborns with intestinal obstruction may present with bilious vomiting, abdominal distension, and failure to pass meconium. A high index of suspicion is essential for early diagnosis and prompt treatment.
**Correct Answer: C. Volvulus**