hello.hepatitis can sometimes produce enlarged spleen but that is in acute phase and hepatitis A
is self limiting disease and does not have a chronic phase unlike hepatitis B
pain under right rib cage is mostly due to enlarged liver and not enlarged spleen but may be sometimes due to moderately or massively enlarged spleen when enlarged spleen crosses umbilicus
comes to right side.
moderately enlarged spleen needs thorough investigations to rule out many conditions including blood disorders and other infective and non infective causes.
lower ribcage pain may also be bone pain
or nonspecific pain or costocondritis depending upon the site.
other symptoms and signs like persistent low grade fever
, bleeding disorders, weght loss and clinical examination in detail etc should be looked for.
so please get her checked by a good physician or internal medicine specialist for examination and evaluation to come to diagnosis.
all the best.