Bleeding from nose after 4 months of septo rhinoplasty surgery?

I was operated for FESS (septo rhinoplasty) for all my sinues 4 months back. About 1 month back, i started getting dry blood from my nose. It mostly comes when i put my finger and sometimes came when i sneezed. I wanted to know if 1. Is it normal to have nose bleeds 4 months after operation? 2. Whether this could possibly be from a rupture or any biodegradable sutures? Should i be worried? I have not got any pain from sinuses post surgery.

No doctor answers yet