what are these bumps on my inner lips
Canker sores. One of the main causes of bumps around lips is canker sores. These are shallow, painful red or white tiny lip lumps that occur on the inside mouth linings. You might get them on the inside of your lips or the insides of your cheeks. Canker sores are different from fever blisters, which usually are on the outside of your lips or the corners of your mouth.