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Diagnostic Consensus on Lipedema: Current State of Knowledge

May 6, 2025

Understanding of lipedema and its diagnostic criteria has evolved over the years thanks to international studies and the involvement of multidisciplinary working groups. This document summarizes the consensus reached in various countries as well as the most recent recommendations for an accurate diagnosis of this still underdiagnosed condition.

Major International Consensus Statements

 

Dutch Consensus (HALK, 2017)

The Dutch consensus laid the groundwork for understanding lipedema by highlighting the disproportionate distribution of subcutaneous fat between the upper and lower body, sparing the hands and feet. Allodynia (increased sensitivity to touch) and significant thickening of subcutaneous fat, often marked by an abrupt termination at the joints, are key criteria supporting the diagnosis.

 

International Lipoedema Association (Brorson, 2021)

This consensus expanded the diagnostic criteria by emphasizing pain during the “pinch test” as a key factor. According to their research, lipedema does not show free fluid on ultrasound, unlike other conditions such as obesity or lymphedema.

 

Consensus Herbst (USA, 2022)

The U.S. criteria include factors such as:

  • Specific distribution: disproportionate fat accumulation in the hips, buttocks, thighs, and legs.
  • Pain and tenderness: pain upon touch or spontaneous pain in the fatty tissue.
  • Fragile capillaries and bruising: a tendency to bruise easily.
  • Resistance to weight loss: difficulty reducing body fat through conventional methods.
    This consensus also emphasized the importance of ruling out other conditions such as lymphedema and obesity.

 

S2K Recommendations (Germany, 2024)

The German guidelines take a rigorous clinical approach, emphasizing the following points:

  • Lipedema is not considered to be a progressive condition by nature.
  • Morphological criteria should not be used to classify severity.
  • Ultrasound and elastography can be useful tools, but they are not sufficient on their own to make a diagnosis.

The Evolution of Diagnosis: Toward a Holistic Approach

The latest updates (Herbst, 2024) have brought about a paradigm shift. Rather than focusing on a hypothetical edema, the current approach aims to treat the primary symptoms:

  • Pain and discomfort: spontaneous or caused by pressure.
  • Psychological vulnerability: often exacerbated by unrealistic beauty standards.
  • Overweight: exacerbates symptoms.
    A comprehensive management approach, including physical and psychological assessments, is recommended to improve patients’ quality of life.

 

Differential Diagnosis: Essential Exclusion

To make an accurate diagnosis, it is essential to distinguish lipedema from the following conditions:

  • Obesity: affects the body uniformly, unlike the asymmetrical distribution of lipedema.
  • Lipohypertrophy: painless accumulation of fat.
  • Lymphedema: often asymmetrical and characterized by swelling with free fluid.

 

The Role of Ultrasound in Diagnosis

Although ultrasound can provide valuable information about subcutaneous tissues, it should not be considered the sole diagnostic tool. Current studies show that the tissue structure of lipedema differs significantly from that of other conditions, but standardized criteria are still lacking.

 

Conclusion

The diagnosis of lipedema relies on a thorough clinical evaluation and the careful exclusion of other conditions. Recent advances highlight the importance of a comprehensive approach that addresses both physical and psychological aspects. Improvements in diagnostic tools and international collaboration will continue to play a key role in the recognition and treatment of this complex condition.

This article was written by Drs. Michelle Cazaubon and Nicolas Zwillinger.

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Diagnostic Consensus on Lipedema: Current State of Knowledge

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