The small bumps on the neck like fat grains may be caused by folliculitis, molluscum contagiosum, filiform warts, etc., the cause of different treatments are different, you should go to the hospital in a timely manner, symptomatic treatment. 1. Folliculitis: the small bumps on the neck like fat grains may be caused by folliculitis, red bumps or white pus spots on the skin, folliculitis can be treated with mupirocin ointment, fusidic acid cream and so on under the guidance of the doctor. 2. Molluscum contagiosum: small bumps on the neck like fat grains may be molluscum contagiosum, which can be removed by carbon dioxide laser treatment, ionized cautery, liquid nitrogen freezing and other methods. 3. filiform warts: neck long bumps like fat grain may be caused by HPV virus infection filiform warts, filiform warts often occur in the neck, armpits, you can take liquid freezing, laser physical therapy, or local application of imiquimod and other topical ointment for treatment. It is important to note that patients with small bumps on their necks should consult a doctor to determine the cause of the bumps, and follow the doctor’s instructions on how to use the medication and choose the treatment, and not blindly use the medication.