Causes, Symptoms and Treatment of Fibrosis In order to treat the condition of fibrosis, it is essential to determine what kind of fibrosis you have, there are two kinds of fibrosis, namely pulmonary (scarring through the lungs) and cystic (usually genetic, causes excessively thick mucus formation and can be fatal, especially in children). In both cases, the affected organ is the lung, and so for any remedial measures, you must begin with working towards healthier lungs...