Millet-like white dots in the scalp, consider folliculitis, sebaceous gland hyperplasia, millet rash and so on. 1. Folliculitis: If the patient usually like to use alkaline shampoo or long-term late night and intake of greasy food, can lead to excessive scalp oil secretion, a large amount of oil can not be excreted, blocked in the pores, and then cause bacterial growth, the formation of folliculitis. When the folliculitis scabs come off, you can use your hands to pick out the dry oil in the pores, which is white particles. 2. Sebaceous gland hyperplasia: When the sebaceous glands in the scalp area of the patient’s sebaceous gland secretion is more vigorous, clogged in the pores, causing sebaceous gland hyperplasia, picking out the white, oily granular material like the glands. 3. Corn Rash: In addition, the millet-like white spots inside the scalp are hard nodules, which can be considered to be caused by Corn Rash. Corn rash, also known as prickly heat, is an acute inflammatory skin disease caused by the blockage of sweat ducts and the retention of sweat in the body that cannot be excreted. It can lead to tiny, clear blisters on the localized skin. Millet-like white dots appear inside the scalp, and itching or pain and other symptoms of discomfort, you need to go to the hospital in a timely manner, to clarify the cause of the disease, under the guidance of the doctor symptomatic treatment.