The causes of chin acne include bad habits, toxin accumulation, endocrine disorders, other causes, etc., as follows: First, bad habits: many people in life like to touch their chin with their hands, hold the chin, etc., always unintentionally, in addition to many people wipe their mouth after eating, the habit of making the bacteria on the hands stay on the chin, becoming a potential cause of acne. Second, the accumulation of toxins: the accumulation of too much toxins in the body. Third, endocrine disorders: many people in life will be due to a variety of factors, resulting in endocrine disorders, such as staying up late, smoking, drinking, lack of exercise, emotional distress, etc. Fourth, other reasons: such as oily skin, oil, alkaline skin, have better elasticity, but it will lead to impurities in the air, dust, mites, etc., clogging the pores of the chin, triggering chin acne. There are also some special people and special periods, such as women’s physiological period, pregnancy, menopause, puberty, etc., the human body will have endocrine disorders and other phenomena, resulting in the blockage of the hair follicle mouth, triggering chin acne.