Individuals with cystic fibrosis often develop nasal polyps. Chloride secretion increases in cystic fibrosis. This absorption is impaired in some cystic fibrosis patients. Clinical trials for the treatment of cystic fibrosis are ongoing. MRSA accounts for 26% of lung infections in those with cystic fibrosis. It occurs most often in people with asthma or cystic fibrosis. It is used to diagnose cystic fibrosis. This may improve the outcomes of those with cystic fibrosis and other respiratory infections. Meconium ileus is often the first sign of cystic fibrosis. There is no known cure for cystic fibrosis. IL-8 has also been implicated in the pathology of cystic fibrosis. It may be considered ineffective in cystic fibrosis. Bronchoconstriction is common in people with respiratory problems, such as asthma, COPD, and cystic fibrosis. A high proportion of children with cystic fibrosis have discolored teeth. Around 5 to 10% of all patients with cystic fibrosis develop bronchiectasis.