Who should not have cellulite treatment?
Cellulite treatment is elective, so it is postponed during pregnancy and breastfeeding. For Onda Pro coolwaves, the main contraindications set out by an international advisory board of Onda users in 2024 include a pacemaker or other heart or nerve-stimulator implant, heart failure, a current cancer or one treated within the past five years, a clotting disorder or active vein inflammation, an organ transplant, kidney or liver failure, and poorly controlled diabetes.
On the thighs and buttocks, varicose veins, a past thrombosis, blood-thinning medicines, a lipoma, broken or infected skin and a tendency to keloids call for caution or a change of plan, as does reduced sensation, because the session relies on you reporting heat. Dimpling that comes with pain, easy bruising or swelling of the legs may be lipoedema or a circulation problem rather than cellulite, and is assessed medically before any cosmetic treatment is considered. Suitability is decided at consultation, after grading and a medical history.
Is cellulite treatment safe? The risks to know
With microwave energy, the usual effects are warmth, redness, swelling and tenderness over the treated area, sometimes with itching, numbness or a firm, lumpy feeling under the skin that settles over days. Bruising is more likely on the thighs in people who bruise easily or take blood-thinning medicines. Blisters, burns and small nodules that can be felt under the skin are less common.
The Onda advisory board links most adverse effects to excessive handpiece pressure, settings too high for the tissue, or treating someone who was not suitable. Risk is reduced by grading and examination first, settings matched to the dominant component and the area, continuous contact cooling, and stopping the energy at once if heat becomes excessive. Other cellulite treatments carry their own risks; subcision, for example, commonly causes bruising and tenderness over the released dimples. None of these methods removes the underlying tendency, which is why expectations are set at the grading stage. Anything that does not settle as expected is reviewed at the clinic.