A lot of small particles on the nose may be caused by whitehead acne, fat grain and other reasons. 1. Whitehead acne: when the nose skin follicle funnel part by sebum and stratum corneum cells accumulation, blockage, it may trigger whitehead acne, mainly manifested as the skin surface appear corn size or pinhead size creamy white small particles. 2. Fat grain: when the nose area of the small particles may also be long fat grain, manifested as the skin surface yellowish-white small particles, covered with a very thin epidermis, can be squeezed out of the solid globular particles, no self-conscious symptoms. A lot of small particles on the nose may also have other causes, it is recommended to go to the hospital in a timely manner to improve the examination and give targeted treatment after the cause is clear.