The accepted recommendation after removal of vocal cord lesion is voice rest.This recommendation leads to great tension among the patients, loss of working days and need to practice speech therapy.The investigators hypothesize that voice rest after surgery does not affect the quality of the patient's voice. The investigators will divide the patients into 2 groups: the first group will be instructed for a postoperative voice rest and the second group will not. Later the investigators will compare the results and conclude whether voice rest had any significance.
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Patient's evaluation of his own voice
Timeframe: 1 month post operative
Patient's evaluation of his own voice
Timeframe: 3 months post operative
Patient's evaluation of his own voice
Timeframe: 6 months post operative
doctors evaluation of the patient's voice
Timeframe: 1 month post operative
doctors evaluation of the patient's voice
Timeframe: 3 month post operative
doctors evaluation of the patient's voice
Timeframe: 6 month post operative
voice analysis by a software
Timeframe: 1 month post operative
voice analysis by a software
Timeframe: 3 month ost operative
voice analysis by a software
Timeframe: 6 month post operative