2016-12-16T09:26:42-05:00. A because when the little fish die they sink to the bottom, and after time the skeletons build up on top of each other.
How do you get a cyst inside of your lip? A white bump or mucous cyst forms on the lip when the salivary glands get blocked. This is caused by any trauma to the oral cavity due to cheek or lip biting, poor dental habits, or piercings, states Healthline.
Painful bumps may indicate infection, cold sores and trauma caused by lip biting. White bumps caused by sunburn often feel like sandpaper and may cause pain, according to New Health Guide. Although rare, white spots may also indicate oral cancer.