Pimples are part of a normal skin condition that affects women and men. Pimples are an soreness of the skin in which the sebaceous glands become infected with bacteria, swell up, and fill with emission and it may be many reasons for pimples.
Pimple on forehead
Excess sebum emission by the oil glands is the primary cause behind this problem. Pimples usually occur on the face, neck, back and shoulders.