Acne in the middle of the eyebrow can be caused by exuberant secretion of androgen, blockage of follicular opening, skin infection, dietary factors and other reasons. 1. Exuberant secretion of androgen: when androgen secretion is exuberant, it can lead to the enhancement of sebaceous gland function, local sebaceous gland duct keratinization, oil secretion increases, which can appear in the middle of the eyebrow acne performance. 2. Hair follicle mouth blockage: when the skin in the middle of the eyebrow secretes too much oil, the hair follicle can be a mixture of oil and shed keratin and blockage, which can cause thickening of the hair follicle and keratinization abnormality, resulting in the situation of acne. 3. Skin infections: When the skin is infected with pathogens such as Staphylococcus aureus and Propionibacterium acnes, the pathogenic bacteria can parasitize and multiply in the hair follicles, triggering local inflammatory reactions and the appearance of acne. 4. Dietary factors: When you eat greasy, spicy, high-calorie and high-sugar foods for a long time, you can increase the secretion of sebaceous glands, and pimples grow between your eyebrows. If you have pimples in the middle of your eyebrows, you should consult a doctor in time. Active treatment under the guidance of a specialized doctor will help to relieve the uncomfortable symptoms as soon as possible.