Hello and welcome to HCM,
A history of bleeding from nose and spontaneous bleeding in the flank region suggests a platelet disorder.
Platelets are blood cells which are responsible for formation of plugs which stop bleeding from blood vessels after minor injury
to small blood vessels.
When there is decrease in number of platelets or any abnormality in the function of the platelets, they are not able to perform their function of making a platelet plug and stop spontaneous bleeding.
However, platelet abnormalities cause petechial hemorrhages (pin point hemorrhages). Large sized bruises are caused by abnormalities of coagulation factors.
You need to consult a hematologist
for clinical examination of the child, platelet function tests and thus management.
Platelet abnormalities are treated by platelet transfusion whereas coagulation factor defects are treated by replacement of coagulation factors.
Thanks and take care
Dr Shailja P Wahal