Pulmonary fibrosis foci may be asymptomatic and those with symptoms may present as.
general wasting, weakness, loss of appetite, joint pain, etc., which is generally less common
dyspnoea, which worsens with activity and progressively worsens over time, with shallow, rapid breathing and may include nasal flapping.
Absence of cough in the early stages, later a dry cough or a small amount of mucous sputum, or mucopurulent sputum if accompanied by bacterial infection in later stages.
The onset of the disease is prolonged, with marked individual differences in the rate of progression, which may progress to heart failure or pulmonary heart disease over a period of months or years.