Frequent nose picking may cause nasal bleeding, nasal hair shedding, nasal infection and other hazards. 1. Nasal bleeding: the capillaries inside the nasal cavity are rich and fragile, and frequent picking of the nostrils may damage the capillaries inside the nasal cavity, thus leading to nasal bleeding. 2. Nasal hair shedding: there are a lot of hair follicles in the area where the nasal hair grows, if you dig your nostrils often, you may damage these hair follicles, leading to nasal hair shedding in the nasal cavity, becoming scarce, and thus failing to play a normal role in defense. 3. Nasal infection: the finger area is generally more bacteria, often digging the nostrils, may lead to bacteria into the nasal cavity, resulting in infection. Frequent picking of the nostrils is a bad habit, may cause all kinds of harm, it is recommended to avoid the behavior of picking the nostrils in daily life, so as not to cause adverse consequences.