Systems, devices, and methods of treating tissue and cellulite by non-invasive acoustic subcision

Embodiments of the present disclosure are directed to systems, devices, and methods of inducing physical effects in tissue, such as dermis, adipose, musculoskeletal, vascular, hepatic tissue, using unfocused or planar, non-cavitating acoustic shock waves. The physical effects include disruption of fibrous extracellular matrix of the targeted tissues. Embodiments of the present disclosure include applying rapid acoustic pulses (e.g., shock waves) to cause a breakdown in the fibrous extracellular matrix to reduce the appearance of cellulite or scars in a treatment area. Such unfocused or planar, non-cavitating acoustic shock waves may induce a tissue reaction, such as reduction of fibrosis, induction of angiogenesis, or lymphangiogenesis.