Objective of the study : Compare the results of each of the early rehabilitation treatments (passive and active) with a view to orienting the therapeutic choice in the physiotherapy management of lesions of the flexors of the hand. Materials and methods : This is a single-blind, randomized clinical trial involving 30 patients suffering from operated hand flexor lesions divided into two series: Series 1 (n = 15): rehabilitation protocol for early passive mobilization and series 2 (n = 15): rehabilitation protocol for early active mobilization. The sample size was set according to Student's tests with an alpha threshold of 0.05, a power of 0.90. The intervention on the patients will be done at the level of the rehabilitation unit of the trauma service Wing 4 of the Ibn Rochd Hospital Center in Casablanca and will last 12 sessions at the rate of 03 sessions per week. The overall duration of the study depends on the flow of patients and will take approximately 6 months. The evaluation tool recommended for the classification of the results emanating from the study is that of the functional evaluation of the hand according to the method of White and boys.For statistical analysis, the data will be analyzed by SPSS software for Windows version 24.0. (Armonk, NY: IBM Corp). An ethics dossier relating to the study is in the process of being validated. Expected results The results found will make it possible to verify the following alternative hypothesis: H1:There is a statistically significant improvement in favor of the rehabilitation protocol of early active mobilization versus early passive mobilization. This implies checking the resulting alternative sub-hypotheses: H1.1: there is a statistically significant correlation of the distance pulp-palmar distal fold in favor of series 2 versus series 1. H1.2: there is a statistically significant correlation of the total deficit of the distal extension in favor of series 2 versus series 1