Which condition is characterized by RLQ pain, bleeding, and potential obstruction?

The condition characterized by right lower quadrant (RLQ) pain, bleeding, and potential obstruction is Meckel diverticulum. This congenital anomaly arises from the persistence of the omphalomesenteric duct, and it can cause complications such as pain, gastrointestinal bleeding, and obstruction. The pain is often localized to the RLQ due to the diverticulum's anatomical location.

In Meckel diverticulum, the presence of ectopic mucosa, such as gastric or pancreatic tissue, can lead to ulceration and subsequent bleeding. Additionally, the diverticulum itself can become obstructed by adhesions, intestinal twist (torsion), or other factors, leading to significant morbidity.

Other conditions listed may present with similar symptoms, but they differ in their specific characteristics. Intussusception typically presents with intermittent abdominal pain and "currant jelly" stools due to the passage of mucus and blood and is more common in young children. Trichuriasis, caused by the whipworm, may lead to gastrointestinal symptoms, but bleeding is not a hallmark feature. Ascariasis, a roundworm infection, can cause obstruction as well but is usually associated with more generalized abdominal complaints rather than localized RLQ pain. Thus, the specific combination of RLQ pain,