Pulmonary Fibrosis is not contagious. It is a lung disease characterized by scarring and thickening of the lung tissues, which leads to difficulty in breathing. However, it is important to note that the exact cause of this condition is often unknown, but it can be linked to certain risk factors such as smoking, exposure to environmental toxins, and certain medical conditions. If you suspect you have symptoms of pulmonary fibrosis, it is advisable to consult a healthcare professional for proper diagnosis and treatment.