This looks like a small benign bump on the lip, commonly due to Fordyce spots (normal oil glands) or sometimes mucous cysts. Usually harmless and no treatment is needed unless it grows, becomes painful, or multiplies.
Next Steps
Keep lips moisturized. If the bump increases in size, becomes painful, or new ones appear, consult a dermatologist for examination.
Health Tips
Do not try to scratch or squeeze it, as that can cause infection or scarring.