In our work we presented a new method of chronic tonsillitis diagnosis and evaluated its usefulness in qualification to tonsillectomy. Oligobiopsies were obtained from right and left palatine tonsils of 36 patients who were qualified to tonsillectomy on the basis of past medical history, otolaryngological examination and laboratory tests findings. Following gauge of biopsy instruments were used: 2 mm, 3 mm, 4 mm. The material obtained at biopsies and tonsillectomies was histopathologically evaluated. Histopathological findings of specimens obtained at oligobiopsies and post tonsillectomies were compared. The presence of interstitial fibrosis, neutrophils infiltrates, hyperplastic changes of lymphoid follicles of palatine tonsils were evaluated in oligobiopsy specimens in comparison to the results of postoperative specimen findings. Full concordance of histopathological findings obtained at oligobiopsy and post tonsillectomy was noted with the use of biopsy instruments of 3 mm and 4 mm gauge. Specimens obtained at oligobiopsies had a great diagnostic value. It was proved that the biopsy performed according to our method has a great diagnostic value and helps surgeon to qualify patient to tonsillectomy.