A cabinet door that will not close may be misaligned, rubbing another door, have a loose hinge, or be blocked by a shelf, drawer, or catch. Before turning adjustment screws, watch exactly where it stops; that clue prevents changing a hinge that was already set correctly.
Check for a physical obstruction first
Remove items that protrude and make sure drawers and shelves are fully seated. If the problem began after reorganizing the cabinet, an obstruction is more likely than a hinge adjustment issue.
Tighten loose screws before changing alignment
Support the door to take weight off the hinge and snug any clearly loose screws without stripping them. If a screw spins without tightening, the hole may be damaged and should be repaired before further alignment work.
Identify whether it rubs at the top, bottom, or side
European-style hinges often allow small side, height, and depth adjustments. Make one small change at a time and test the door, because changing two directions at once can make alignment worse.
Check the catch and hinge if the door springs back open
A magnet, latch, or soft-close mechanism that is out of position can keep the door from seating. If the hinge is bent or has internal play, replacement is usually more reliable than forcing additional adjustment.