Hi welcome to Healthcaremagic
Hi..., Dengue is a viral fever
, the the infection results in the thrombocytopenia
.. since she is having pain abdomen you need to consult a doctor... any internal bleeding
in stomach, can result as pain, this will present as black tarry stool.... hence USG of abdomen is need.. also repeat the CBC and platelet count
, to prevent such complications..
Hope I have answered your question..