Nose bleeding

My lo is 19mos and he's had several nose bleeding episodes. Last night I woke up when I heard him sneeze and when I checked him up, I saw his blankie with blood. Siguro he's had 5 random episodes na since the last 4 months. Does anyone here has the same situation as mine? Nakapag pa check up na ba kayo sa EENT? I already had him checked by our Pedia pero wala naman definitive findings.