If something punctures your skin, you could be exposed to a group of bacteria called Pseudomonas aeruginosa, which can cause a serious infection. Who is at highest risk for Pseudomonas aeruginosa infection? The following conditions raise your risk for Pseudomonas aeruginosa infection, per the Cleveland Clinic:Add Good Housekeeping as a preferred source in your Google search results. Add to Google settingsCancerCystic fibrosisHIV and AIDSKidney diseaseLiver diseaseHaving had an organ transplantPregnancyLupusrheumatoid arthritisHaving had surgeryHaving suffered severe burnsWhat are the symptoms of Pseudomonas aeruginosa infection? ” as social media calls it, is a symptom of a Pseudomonas aeruginosa infection that can cause a secondary infection underneath your fingernails and turn the nails green.