Flesh bumps on the forehead may be caused by epidermal cysts, filiform warts, cornrows and other diseases. 1. Epidermal cysts: the cause of the disease may be related to trauma, embryonic ectopic and other factors, the patient will appear in the local subcutaneous or intradermal nodules, commonly in the trunk, face and other parts of the body. 2. Filiform warts: the cause of the disease is mainly related to human papilloma virus infection, mainly manifested as a bulge in the skin of the superfluous organisms, common in the face. 3. Cornucopia: the cause of the disease may be related to heredity, sweat duct damage and other factors, the patient will appear local solid pimples, smooth surface, not fusion, usually yellowish white, mostly in the face. The causes of forehead pimples are more, it is recommended to go to the regular hospital for examination to clarify the cause of the disease.