Lupus Warning Signs: How to Recognize and Manage This Elusive Autoimmune Disease

9. Mouth and Nose Ulcers
Painless ulcers inside the mouth or nose are a lesser-known lupus symptom. While easy to overlook, their frequent recurrence can be a telltale sign.
Why it matters: If you regularly develop small, whitish sores in your mouth or irritated spots in your nose---especially if they appear alongside other symptoms---it could be lupus-related.