What could a red bump on my lip be if it's not a cold sore?

There are a few reasons you might see a red bump on your lip if it isn't a cold sore. One possibility is a cherry angioma—a small, bright red spot made up of tiny blood vessels. These are common and not harmful. Another possibility is a mucocele, which happens when saliva leaks from a small gland in your lip due to minor injury or biting; these bumps can look red or even bluish. Sometimes, an acne lesion can occur on the lip due to blocked pores or irritation, forming a small red bump that looks much like a pimple. Additionally, Fordyce spots are normal small bumps found on the lips, and while they are usually yellowish or white, they can sometimes look red if they are a bit irritated. In most cases, these red bumps are benign and go away on their own. However, keep an eye on the bump, and if it changes in size, color, or becomes painful, you can use a free AI symptom checker to help determine whether you need to see a doctor.