Is my LV bag real or fake?

Excuse me, I'm hoping you can help me with a bit of a dilemma. I recently purchased an LV bag, but I'm starting to have doubts about its authenticity. Could you please offer some guidance on how to tell if it's real or fake? Are there any specific markings, materials, or stitching techniques that I should be looking for? I'd really appreciate any insights you might have on this matter. Thank you in advance for your time and expertise.