Electronic Muscle Stimulation (EMS)  training should not be performed if there is a history of any of the following below without first consulting with a doctor.

Medical conditions, including but not limited to:

Electrical implants
You should check with a medical specialist in any case. EMS is contraindicated with pacemakers, especially with defibrillation coils.

The muscular tension produced by EMS in the abdomen, hips, and pelvic floor can be harmful to the fetus. The tightness of the belt and heat generated by this type of training can also be of high risk.

Blood flows to the limbs during training causing insufficient blood flow in the abdominal area, which in return can cause the risk of miscarriage.

Serious diseases, bacterial infections, or inflammation
Avoid using EMS when showing signs of a fever. The pathogens could reach the heart and cause myocarditis, endocarditis, or serious cardiopathies.

Open skin wounds and eczema
Although our conductive pads are antibacterial, we do not recommend using our product if you have any open wounds or irritated skin.

The use of EMS on any damaged or sunburnt skin can cause swelling and pain.

Skin intolerances
Caution must be taken with any skin intolerance, such as skin allergies or irritation with redness and the formation of pustules. It is recommended to consult with a doctor before using  any EMS products. 

Recent operations
Consult with your medical professional before use. Every procedure has a different recovery time.

Thrombosis and thrombophlebitis
In these cases, EMS may cause a clot to break loose and can be detrimental to your health. 

Stents that have been active for less than six months
A stent must be perfectly integrated for at least six months before starting or restarting EMS training.

Atherosclerosis, blood circulation problems
In these cases, training with EMS is contraindicated due to the high muscle tension produced.

Untreated high blood pressure
Consult with your doctor if you have high blood pressure. There is a risk of an uncontrollable increase while exercising, however, if controlled and medicated you can train with EMS.

Cardiac Arrhythmias
EMS training with continuous pulses is discouraged. You must first consult with your doctor before use.

Other cardiovascular diseases
Due to multiple variables regarding this condition, please consult with your medical professional before use to get accurate information. 

Bleeding disorders (hemophilia)
This disease involves a clotting deficiency when bleeding and major hemorrhaging. Therefore, any blood vessel breakage may be lethal. EMS training is discouraged.

Serious forms of diabetes mellitus
Consult with a physician before use. There is a risk of diabetic shock due to a drop in the level of glucose in the blood after intensive training.

Cancer or tumors
EMS may speed up metastasis. Consult with your medical professional before use.

Acute arthritis
There is a potential risk of overheating, increasing the rise of any of the symptoms, as this disease is also caused by heat.

Neurological diseases and epilepsy
It is not recommended to do EMS training if you suffer from any type of neurological diseases, such as multiple sclerosis. If you have epilepsy, you must go 12 months without any attacks before doing EMS training. You must consult with a physician first.

Progressive muscular dystrophy
EMS training can speed up dystrophy. Please consult with your medical professional before use.

Abdominal and inguinal hernias
The tension in the abdomen and pelvic floor may worsen with this condition.

Undiagnosed back pain
The causes or symptoms must be known for safe training. Please consult with your doctor before use if constant pain continues.

Internal organ diseases
Kidney diseases can be particularly problematic in regards to EMS since they are responsible for filtering and eliminating metabolic waste, which is higher following exercise.

You should also consult with a doctor if you retain a lot of liquid or suffer from lymphedema, varicose veins, or if you take certain medications.