Medical device suitable for irradiating parts of the human body with a magnetic field for magnetotherapy treatment suitable for regularizating the electrochemical equilibrium of the cells and for restoring correct permeability of cell membranes, comprising: a plurality of therapeutic sections designed to generate an equal number of therapeutic programs, each of said therapeutic section being made up of a first circuit suitable for generating a high frequency signal and a second circuit suitable for generating a low frequency signal, said high frequency signal being a modulated signal having a carrier with a frequency greater than 15 MHz and a modulator with a frequency ranging between 100 Hz and 5000 Hz, said low frequency signal having a frequency comprised between 6 Hz and 100 Hz, each pulse of the low frequency signal alternating with a finite train of pulses of said high frequency signal; a plurality of applicators to be applied to the body parts to be treated, each of said applicators being powered by one of said therapeutic sections, each of said applicators being made up of a solenoid and an antenna, said antenna being directly or indirectly powered by said first circuit and said solenoid being directly or indirectly powered by said second circuit, each therapeutic section being provided with a corresponding circuit for regulation and control of the voltage and current that is operatively active on the antennas and solenoids of the applicators powered by that therapeutic section in such a way as to vary the relative magnetic fields and thus the value of the current flowing in the solenoids, said circuit for regulation and control including a stage for reversing the direction of circulation of the current flowing in the solenoids; a wireless transmitting module which transmits data to a wireless receiving module housed in the applicator, the data received from said wireless receiving module being used to bias said solenoid and/or to power said antenna. a plurality of therapeutic sections designed to generate an equal number of therapeutic programs, each of said therapeutic section being made up of a first circuit suitable for generating a high frequency signal and a second circuit suitable for generating a low frequency signal, said high frequency signal being a modulated signal having a carrier with a frequency greater than 15 MHz and a modulator with a frequency ranging between 100 Hz and 5000 Hz, said low frequency signal having a frequency comprised between 6 Hz and 100 Hz, each pulse of the low frequency signal alternating with a finite train of pulses of said high frequency signal; a plurality of applicators to be applied to the body parts to be treated, each of said applicators being powered by one of said therapeutic sections, each of said applicators being made up of a solenoid and an antenna, said antenna being directly or indirectly powered by said first circuit and said solenoid being directly or indirectly powered by said second circuit, each therapeutic section being provided with a corresponding circuit for regulation and control of the voltage and current that is operatively active on the antennas and solenoids of the applicators powered by that therapeutic section in such a way as to vary the relative magnetic fields and thus the value of the current flowing in the solenoids, said circuit for regulation and control including a stage for reversing the direction of circulation of the current flowing in the solenoids; a wireless transmitting module which transmits data to a wireless receiving module housed in the applicator, the data received from said wireless receiving module being used to bias said solenoid and/or to power said antenna.