Pimple On Lip Line Causes. Consider a blood test to rule this out. Dark or black spots on lips are often caused by angiokeratoma of Fordyce.

Causes of Pimples on Lips Acne pimples on lips. If this is the cause you will see it most often during the winter when your lips are flaky and excessively dry. Other cause of the pimples on lip will include using substandard or expired lip care products poor oral and lip hygiene hush cosmetics and hormonal fluctuation especial when pregnant stressed or during puberty.
Pimple in Lip Inside Lip or in Inner Lip Although not very common it is also possible to have a pimple in lip inside lip or in the inner lip.
If you get acne frequently talk to your dermatologist about getting prescription acne medication. Occasionally black spots on lips may not cause any pain but. Acne around the edges of your mouth is a common reason for red pus-filled bumps zits and pimples. This is a common reason why a person might develop bumps on lips in addition to sores on your lips.