A lot of small particles on the neck do not hurt or itch may be caused by the growth of cornus, keratosis, filiform warts and other causes. 1. Corns: a benign swelling or retention cyst of the epidermis or epithelium of the appendages. It may be related to genetic factors, occurring from the neonatal period, formed by the undeveloped sebaceous glands or the epithelium of the lower part of the funnel of the cuirass. It can also be secondary to inflammation or trauma, usually patients have no conscious symptoms, there can be a lot of small particles on the neck painless and itchy phenomenon. 2. keratin: the skin’s organizational structure is divided into epidermis, dermis and subcutaneous tissue, of which the epidermis is divided into the stratum corneum, granular cell layer, echinocyte layer and basal cell layer. When patients have hyperkeratosis due to reasons such as inadequate cleaning, it is often accompanied by thickening of the granular layer and the echinocyte layer. This is the reason why there are a lot of small particles on the neck that do not hurt or itch. 3. Filiform warts: are infected by the human papilloma virus, resulting in the skin mucous membranes produce benign superfluous organisms. It’s a good idea to get a good deal of money for a good deal of time, and it’s a good idea to get a good deal of money for a good deal of time, and it’s a good idea to get a good deal of money for a good deal of time. They are usually painless and can mostly subside naturally. A lot of small particles on the neck without pain or itching may also be other reasons, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease and then follow the doctor’s instructions to deal with it, to avoid delaying the condition.