A 30-year-old woman presents with anemia, jaundice, and splenomegaly. Laboratory tests reveal a hemoglobin level of 8 g/dL, a mean corpuscular volume (MCV) of 80 fL, and a reticulocyte count of 10%. What is the most likely diagnosis?

The combination of anemia, jaundice, and splenomegaly in a young adult is suggestive of a hemolytic anemia. The laboratory findings of a low hemoglobin level, normal MCV, and elevated reticulocyte count support this diagnosis. Hereditary spherocytosis is a congenital disorder characterized by the production of abnormal spherical red blood cells that are prone to premature destruction, leading to hemolytic anemia.