Breakouts along the chin and jaw can be frustrating, especially when they seem to return in the same place. Jawline acne develops for the same basic reason as acne elsewhere: hair follicles become clogged. The cause, however, can vary from person to person.
Genetics, hormonal changes, certain medical conditions, some medications, skin products, and friction can all play a role. Mild cases may improve with over-the-counter acne products, while more persistent or severe acne may need prescription treatment from a physician or dermatologist. Results can take several weeks, depending on how inflamed the acne is and which treatment is used.
How acne forms along the jawline
Sebaceous glands naturally make oil that helps lubricate the skin. That oil moves through the openings of hair follicles to reach the skin’s surface. When excess oil combines with dead skin cells, hair, or dirt, the follicle opening can become blocked.
If the blockage stays closed beneath the surface, it may form a whitehead. If the opening remains exposed to air, the plug can darken and appear as a blackhead. When the clogged follicle becomes inflamed, the bump may turn red, swollen, tender, or painful.