OBJECTIVES: Pelvic floor muscles (PFMs) weakening and urinary incontinence (UI) represent health issues that have a negative impact on daily life. This study compares the immediate efficiency of high-intensity focused electromagnetic (HIFEM) therapy and electrostimulation for the treatment of weakened PFMs, accompanied by the UI. METHODS: Ninety-five parous women were considered for the study. Symptomatic patients received either HIFEM or electrostimulation treatment. Treated patients completed 10 therapies scheduled 2 to 3 times per week (HIFEM) or every other day (electrostimulation). Patients underwent examination by 3-dimensional transperienal ultrasound at the baseline and posttreatments. Levator-urethra gap, anteroposterior diameter, laterolateral diameter of levator hiatus, and hiatal area were measured. In addition, Pelvic Floor Disability Index 20 questionnaire and subjective evaluation of patient's intimate health were assessed. RESULTS: Enrolled patients were divided into group I (n = 50, HIFEM), group II (n = 25, electrostimulation), and group III (n = 20, control) according the indication and treatment modality. Three-dimensional ultrasounds showed positive changes in dynamics of the pelvic floor posttreatment (decreased anteroposterior diameter, laterolateral diameter, and hiatal area). However, the significant (P < 0.05) changes of pelvic floor integrity were observed only in group I. In addition, group I achieved greater level of improvement in Pelvic Floor Disability Index 20 questionnaire compared with group II (52% and 18% respectively; P < 0.001). Substantially fewer patients in group I reported urine leakage after treatments. CONCLUSIONS: Posttreatment results suggest that HIFEM technology is suitable for treatment of PFMs weakening and showed to be more effective when compared with electrostimulation in short-term. Therefore, we recommend HIFEM as treatment option for weakened PFMs and UI. Copyright © 2020 The Author(s). Published by Wolters Kluwer Health, Inc.