The dear doctor, to my son of 17 years at night at it or him often krvotechenie from but...

[Valentine]

The dear doctor, to my son of 17 years at night at it or him often krvotechenie from a nose, than can be caused or called it and it is how much dangerous?

[Doctor V.I.Kochenov.]

Descend or Go to a local ENT to the doctor and make cauterization varikoznyh veins of a nasal septum an argentum nitricum.