White nose hairs may be caused by physiological factors such as aging and degeneration, or diseases such as vitiligo and albinism. 1. Physiological factors. Nose hair also belongs to the hair, age, body function decline, pigment cells synthesize melanin reduced or even no, so the phenomenon of white hair. When the nutritional state is poor, the body function is weakened, may also form white nasal hair. If family members have white nose hair, it may be caused by heredity. 2. Pathologic factors. Due to the accumulation of toxic compounds, skin trauma, melanocyte damage, vitiligo, which leads to white patches all over the body, skin pigmentation degradation and other symptoms, the disease involved in the nasal cavity can lead to the phenomenon of white nasal hair. 3. Due to the existence of pigment synthesis gene mutation, such as albinism, resulting in melanin reduction, skin white, nose hair white symptoms. The causes of white nose hair are not yet fully determined, if it causes discomfort or concern, you can actively seek medical attention and systematic examination to clarify the cause.