Nose bleeding when picking is usually caused by nasal vestibulitis, nasal vestibular eczema, and improper nose picking. 1. Nasal vestibulitis: Repeated nose picking and other bad hygiene habits lead to redness, swelling and ulceration of the nasal vestibular skin, resulting in nasal vestibulitis. At this time in the nasal secretion under the stimulation of the patient’s nose is unusually sensitive, the nose is easy to bleed when picking. 2. Nasal vestibular eczema: Nasal vestibular eczema leads to localized infiltration and hypertrophy of the nose, easy to trigger intense itching, scratching the nose is more susceptible to bacterial infection, nose picking will cause nasal mucosal damage, the nose will bleed when you pick. 3. Picking the nose with improper force: the nasal mucosa is relatively fragile, the local blood vessels are exposed, the external force under the action of the strong key, repeated keying will lead to the nasal mucosa capillary rupture, the nose will bleed when picking the symptoms. If the symptoms can not be relieved, often picking the nose bleeding, it is recommended to consult a doctor in a timely manner, please ask the doctor for a clear diagnosis and treatment, daily attention to minimize the action of picking the nose.