Chin and jawline acne is often linked to hormonal shifts such as during the menstrual cycle, pregnancy, or starting or stopping birth control. The article notes that “the most frequent cause of chin and jawline acne—especially in adults—is hormonal changes.”

Stress can also play a role by raising cortisol levels, which boosts oil production and clogs pores. Diet contributes too, with “dairy, sugary snacks, and processed carbs” sometimes triggering breakouts. High-glycemic foods are especially tied to flare-ups.

Poor skincare habits, like using harsh products, not cleansing properly, or frequently touching the face, can worsen acne. Hair products and buildup in facial hair may also clog pores, while contact with “dirty pillowcases or phones” transfers bacteria and oil to the skin.

Persistent chin acne can signal deeper issues, such as polycystic ovary syndrome (PCOS), which causes hormonal imbalances.

To manage breakouts, the article suggests keeping the skin clean, avoiding picking, and using gentle treatments with salicylic acid or benzoyl peroxide. If acne continues, it advises seeing a dermatologist for a tailored plan.

At its core, chin acne is frustrating but usually manageable with consistent care and small lifestyle changes.