There was found 287 patients (7.3%) under 45 years among 3911 operated primary lung cancer between 1970-1980. 36.9% of the diseases was discovered by x-ray screening, 63.1% by complaints. The operability of the patients in the first 3 months (55.8%) after discovery was 81.25% versus 63% later than 3 months. There were distributed by histology 34.1% squamous cell, 31% adenocarcinoma, 31.4% small cell and 3.5% large cell lung cancer. According to the stages there were 17.4% Stage I, 3.5% Stage II, 79.1% Stage III. In the first two stages were the operability rate 100%, in Stage III. 66.1%. There were resected 210 patients (73.2%), and 127 were performed standard, 83 extended resections. The 30-day operative mortality was 5.9%. The 5-year survival time was 26.5% of all patients, 36.2% of resected patients. The rates of 5-year survival showed 39.8% with squamous cell, 22.5% with adenocarcinoma and 13.3% with small cell lung cancer. The author compares the own results to literature, expresses his opinion and standpoint of surgical possibilities for patients with lung cancer under 45.