Left upper quadrant (LUQ) pain can be due to conditions that affect organs like your spleen, kidney, or stomach. It's best to see a doctor if your LUQ pain worsens or lasts more than 48 hours.
Right upper quadrant pain can feel dull, aching, colicky, or cramping. Common causes include gallstones, hepatitis, and kidney stones. Treatment depends on the cause and may involve dietary changes, ...