Atelectasis is a condition in which partial or complete collapse of lungs takes place. Atelectasis occurs when alveoli (tiny air sacs) within the lungs get deflated. The condition shows serious results if a person makes delay in taking the treatment

The condition can be caused by variety of factors. The condition can be termed as outcome of some respiratory problems. The other causes of the condition are presence of mucus in the airway after surgery, inhaling of foreign objects, severe asthma, cystic fibrosis, chest injuries, etc.  Some factors that increase the risk of condition are anaesthesia, shallow breathing, lung diseases, etc.

If anyone is bedridden for prolonged time period, deep breathing exercise along with physical movement is encouraged in order to prevent the condition of Atelectasis. After anaesthesia, maintaining deep breathing exercise also helps in preventing Atelectasis.