Blood in sputum, have done head, neck test, done x-ray, my doctor said it may be result of tear of capillarie at base of the tongue.he prescribed mouth w?

Blood in Sputum: May be hard to find source, as bleeding is not constant. Three sources: upper airway, lower airway, and digestive. A complete upper airway endoscopy can be performed by an ENT to look for upper sources. But, it may be "normal" between episodes. My routine: chest x-ray, upper airway endoscopy, and depending upon risk factors, esophagogastroduodenoscopy (look into esophagus and stomach). See an ent.

Sputum blood: This can be a serious issue. Sputum from coughing is different than saliva. If you had a torn capillary on the tongue you would have blood in the saliva for only a short time until it clotted. Recurring blood in the sputum is serious and you should have your lungs evaluated.