There are many reasons for nasal pimples. First of all, it may be caused by fire, stimulating the pores to produce too much sebum, due to the excessive production of sebum easy to block the pores, resulting in nasal pimples. The second is that the nasal pimples may be caused by mite infection, mite excretion of substances easily infected and stimulated skin, and may even lead to the appearance of dermatitis, so that the nasal pimples, may also be caused by endocrine disorders, such as mental tension, excessive stress, too emotional, etc., will easily cause endocrine disorders, causing abnormal secretion of hormones in the body, resulting in nasal pimples. If the skin is not properly cleaned, it is also easy to cause acne on the nose, bacteria will stimulate the skin at the nose to cause acne phenomenon, there are many reasons for acne on the nose, need to be determined according to the specific examination.