What can I say about the cause of obstructive jaundice if there is jaundice, apetite loss , dark urine , and movable , non tender , firm , 5×3 mass in the right upper quadrant of abdomen ?

Based on the symptoms mentioned, the cause of obstructive jaundice is likely related to a blockage in the bile ducts. The presence of jaundice, appetite loss, dark urine, and a mass in the right upper quadrant of the abdomen further suggest that the blockage is occurring in the biliary system, possibly due to a gallstone or tumor. It is important to consult a healthcare professional for a proper diagnosis and appropriate treatment.