Background. The goal of the pilot study was to estimate the correlation between occurrences of upper extremity discomfort, pain or paresthesia symptoms among computer workers and symptoms of functional disorder of the cervical spine and upper thoracic outlet region. Statistically significant correlation of the symptoms could become the first step in proving, that disorders in the region of cervical spine or upper thoracic outlet can lower tolerance of upper extremity tissues to computer workload. Material and Methods. 30 computer workers aged 20-40 were chosen who work with computers for at least 5 hours a day, 5 days a week. 16 persons who declared to have upper extremity symptoms formed the experimental group and 14 who declared to be free of them became the control group. The study was conducted using an interview and clinical examination method with the elements of manual diagnosis. Results. The were no differences found between the experimental and the control group as to the workload factors nor were there any functional disorders of the region of thorax in the experimental group more frequent. However, the symptoms of functional disorders of the lower cervical spine appeared to be significantly more frequent in the experimental group. Conclusions. Functional disorders of lower cervical spine appear more frequently among the workers who claim to have the symptoms of upper extremity disorders, than among those who declare no such symptoms. Functional disorders of lower cervical spine may be one of the causes of upper extremity ailments, through the mechanism of lowering the tissues workload tolerance.