A lot of forehead acne is caused by endocrine disorders, as follows: First, if you often eat high oil, high fat high calorie food to stimulate the digestive tract, it is easy to produce damage to the function of the digestive tract, the long-term accumulation of food in the body can not be discharged in a timely manner, will lead to a constant accumulation of toxins, resulting in constipation problems, and in the long run endocrine disorders are not relieved, will lead to forehead acne. Secondly, often eat desserts, stimulating, fried food, it is easy to lead to sebum secretion. If sebum secretion is strong, it is easy to lead to acne-like acne problems, and the frequency of acne on the forehead will increase. At the same time, without good washing habits, frequent failure to clean the face and the use of irritating cleansers will also lead to skin allergies and acne problems.