Clear, jelly-like sputum is usually caused by lung inflammation, chronic pharyngitis or contaminated foreign bodies. 1. Inflammation of the lungs: usually pneumonia caused by Klebsiella bacteria, mostly manifested as high fever, chills, diarrhea, chest pain, jaundice and other symptoms. As the lungs are infected, the bacteria produce waste products in the organism and the sputum produced by the metabolism of the organism combine together to form transparent jelly-like sputum, which can be given to anti-infective treatments such as levofloxacin, ceftazidime, piperacillin tazobactam, and cefoperazone sodium sulphadiazine sodium. 2. Chronic pharyngitis: the sputum in the throat contains liquefaction and necrosis of tissues, and even pathogenic bacteria, which makes the patient’s throat appear dry, itchy, uncomfortable, irritating cough, foreign body sensation and other symptoms. For bacterial infections in the throat, ciprofloxacin, cefixime, tobramycin, gentamicin, levofloxacin and other drugs need to be taken. 3. Pollution of foreign bodies: patients inhale air containing debris or dust, the body itself to keep clean, the lungs secrete sputum for wrapping dust, prompting the body to cough sputum, it is transparent jelly-like. When the sputum is transparent jelly-like, there may be other reasons, it is recommended to consult a doctor in a timely manner, under the guidance of specialists to treat the cause.