The invention relates to a method of detecting a risk of occurrence of a plantar ulcer,comprising the following steps: monitoring at least the temperature and pressureof the sole of at least one foot as soon as one of the temperature or pressure parametersexceeds a threshold value, opening a first time window for monitoring the firstparameter if at the end of the first time window the first parameter still exceedssaid threshold value, monitoring the second parameter during a second time windowand assigning a coefficient of risk to the event encountered.