Coughing up blood, medically known as hemoptysis, involves coughing or spitting up blood or blood-streaked mucus from your respiratory tract (i.e. lungs and airways). Coughed-up blood may appear pink, ...
A runny nose can sometimes turn out to be a more serious condition known as a cerebrospinal fluid (CSF) leak. Also known as CSF rhinorrhea, this is a condition in which a fluid (called cerebrospinal ...