The white color of nose hair may be physiological, or it may be caused by drug factors, vitiligo and other reasons. 1. Physiological: aging, exhaustion and other physiological reasons may cause the function of hair pigment cells to decline, melanin deficiency leads to the whitening of nasal hair. 2. drug factors: catecholamines composition of drugs such as overdose, can lead to the body of the blood circulation is impeded, nasal follicles if the blood supply is insufficient to cause the follicle melanin synthesis function is reduced. 3. Vitiligo: Vitiligo is an intractable skin disease, generally localized or generalized pigment loss, all parts of the body can occur. If the damaged skin is in the nasal cavity, it can lead to the whitening of nasal hair. Nasal hair whitening is usually physiological, if accompanied by other symptoms, it is recommended to consult a doctor in a timely manner to clarify the diagnosis and standardize the diagnosis and treatment, to avoid aggravation of the condition.