The aim of this study is to examine the level of clinical change in gross manual skills of Parkinson's patients who receive conventional physiotherapy. For this purpose, the Box-Block Test will be used, and the amount of change that must occur in the patient's hand functions will be determined for the test to be considered clinically meaningful. Patients will continue their routine physical therapy sessions and the researchers will not interfere with this program. The treatment program will be created by the clinical specialist physician and physiotherapist. Upper extremity rehabilitation programs for Parkinson's patients generally consist of methods such as stretching, strengthening, reaching, coordination and recreational activities. Patients will receive physiotherapy for 30 sessions.