What is obesity ?

Obesity is a public health problem in the industrialized world.

It is defined by a BMI (Body Mass Index) of more than 30 Kg/m2.

In the United States, it is estimated that  30% of individuals are overweight or obese (BMI more than 25)



What medical conditions can we find when obesity is present ?

It is known that individuals suffering from obesity have an increased incidence of:



In the study mentioned in the bibliography, one can observe and increase incidence of ishaemic cardiopathy (although the authors didn’t find the difference to be statistically significant)


How does obesity manifest itself on the skin ?

Obesity is associated with several problems on the skin:



Striae distensae (stretch marks)



Plantar hyperkeratosis



Skin tags (acrochordons):

Skin Tags (Acrochordons)



Intertrigo (infections by skin fungi (dermatophytes) and candida yeast)


-Keratosis pilaris



-Pseudoacanthosis nigricans:

Acanthosis Nigricans (Similar in presentation to Pseudoacanthosis Nigricans)






Bacterial infections




Skin infections (folliculitis, impetigo…)




Is psoriasis* associated with obesity ?

Psoriasis is clearly associated with the metabolic syndrome (hypertension, diabetes mellitus, dylipidaemia).

In this study, there is an increased incidence of psoriasis in obese individuals when compared with normal weight individuals. (although the result is not statistically significant)


Psoriasis (Plaque type)



Also, other studies show a clear association between psoriasis and diabetes mellitus:



What should I do ?

Consult a dermatologist who in addition to the management of the skin condition will be able to organize a complete plan by collaborating with:




Skin manifestations of obesity: a comparative study.

Boza JC, Trindade EN, Peruzzo J, Sachett L, Rech L, Cestari TF.

J Eur Acad Dermatol Venereol. 2012 Oct;26(10):1220-3. doi: 10.1111/j.1468-3083.2011.04265.x. Epub 2011 Sep 20.

This comparative study concerns a total of 156 patients, including 76 with a BMI over 30.