The waist-to-hip ratio (WHR) is a simple but powerful tool for analysing body fat distribution and predicting health risks, such as cardiovascular or metabolic diseases. Unlike BMI, WHI focuses on where fat accumulates, not just how much a person weighs. This guide explains what it is, how to calculate it correctly, and why it is key in clinical diagnosis, especially in cases of lipoedema.
What is the WHR?
The waist-to-hip ratio (WHR) is an anthropometric indicator that allows the distribution of body fat to be assessed, especially in the abdominal region. It is calculated by dividing the waist circumference by the hip circumference:
WHR = Waist circumference / Hip circumference
Unlike BMI, which measures the relationship between weight and height, WHI focuses on where fat accumulates, a key aspect in assessing metabolic and cardiovascular risk.
Differences with BMI based on body fat
BMI does not distinguish between fat, muscle or body water, nor does it indicate whether excess fat is located in high-risk areas such as the abdomen. In contrast, WHI allows for the detection of patterns of central or visceral obesity, which are directly related to diseases such as:
For this reason, the WHI is considered an essential complement to BMI, especially in patients whose fat phenotype or clinical condition (such as lipoedema) is not adequately reflected by a single metric.
Why is it important to measure the WHR?
Metabolic risk and associated diseases
The waist-to-hip ratio (WHR) is a direct indicator of metabolic risk. A high waist-to-hip ratio reflects a greater accumulation of visceral fat, which surrounds vital organs and is associated with an increased risk of:
For this reason, organisations such as the WHO recommend using the WHR as a complementary tool to BMI to identify patients at high risk, even when their apparent weight is normal.
Relevance in patients with lipedema
In women with lipedema, fat is distributed abnormally and symmetrically in the legs and arms, but usually spares the abdomen. This results in an apparently normal waist-to-hip ratio, which can mask the condition if only the WHI is used as a diagnostic criterion.
However, when used in conjunction with Body Mass Index (BMI) and clinical examination, WHI can help differentiate between central (metabolic) obesity and lipedema (structural and hormonal). In summary:
Therefore, interpreting the WHI in its proper clinical context is essential to avoid diagnostic errors and offer treatment tailored to the patient’s reality.
How is the WHR calculated?
Instruments and measurement point
Para obtener un índice cintura cadera preciso, es esencial realizar las mediciones de forma estandarizada. Se necesita únicamente una cinta métrica flexible y no extensible.
Puntos anatómicos recomendados:
Las mediciones deben realizarse en posición erguida, con el abdomen relajado y tras una espiración normal.
La fórmula es sencilla:
ICC = Circunferencia de la cintura (cm) ÷ Circunferencia de la cadera (cm)
Ambas medidas deben tomarse en centímetros para mantener la coherencia.
Supongamos una paciente con las siguientes medidas:
Aplicamos la fórmula:
ICC = 78 ÷ 102 = 0,76
Según los criterios de la OMS, este valor se encuentra dentro del rango saludable para mujeres, lo que indicaría bajo riesgo metabólico. No obstante, si esta paciente presentara síntomas de lipedema (dolor, hinchazón, hematomas), el ICC no reflejaría su realidad clínica, y sería necesaria una valoración más completa.
La Organización Mundial de la Salud (OMS) establece valores umbral para el índice cintura cadera (ICC) que permiten clasificar el riesgo para la salud en función del sexo. Estos son los rangos de referencia más utilizados:
| Sexo | ICC Normal | Riesgo elevado | Riesgo muy elevado |
|---|---|---|---|
| Mujeres | < 0,80 | 0,81 – 0,85 | > 0,85 |
| Hombres | < 0,90 | 0,91 – 0,99 | > 1,00 |
Nota: En adultos mayores, pueden aplicarse ajustes, ya que la distribución de grasa cambia con la edad.
Clinical interpretation of the result
An WHR within the normal range indicates a low risk of developing metabolic diseases.
A very high WHR is associated with a significant increase in cardiovascular and metabolic risk and should prompt a comprehensive medical evaluation.
An WHR in the high-risk range suggests central fat accumulation that requires preventive intervention.
It is essential to note that these values are indicative. In patients with lipoedema, the ICC may be normal, but the disease should not be ruled out based on this parameter alone.
Advantages and limitations of the WHR
Advantages:
Limitations:
Does not distinguish between subcutaneous and visceral fat.
May be normal in patients with abnormal fat distribution, such as in lipoedema.
Not suitable as the sole diagnostic tool.
Advantages and limitations of BMI
Advantages:
Limitations:
The combination of BMI + WHR provides a more comprehensive view of the patient’s body condition. While BMI assesses total weight, ICC adds information about where the fat is located.
In patients with lipoedema, this integration is essential, as it allows differentiation between classic obesity (centred on the abdomen) and lipoedema (peripheral accumulation resistant to exercise). In clinical practice, both indices should be interpreted in conjunction with:
Online WHR calculator
Instructions for using the tool
Our ICC calculator allows you to quickly find out your waist-to-hip ratio from any device. You only need to enter two pieces of information:
The system automatically calculates your WHR and provides an interpretation based on WHO reference tables.
Once you have entered your details, the calculator will tell you whether your BMI is:
Important: if you have symptoms consistent with lipedema, a normal BMI does not rule out this condition. We recommend that you request a medical consultation with our specialist team for a full assessment.
WHR in lipedema: clinical approach
Differentiation between pathological and metabolic fat
Lipedema is a chronic disease characterised by a symmetrical and painful accumulation of subcutaneous fat, especially in the legs and, occasionally, the arms. Unlike metabolic obesity, this fat does not respond to diet or exercise, and usually does not affect the abdomen.
For this reason, the waist-to-hip ratio (WHR) may remain within normal ranges in patients with lipedema, even when total body volume is visibly increased. This characteristic makes it an unreliable parameter when used in isolation in the diagnosis of this disease.
While central obesity raises the WHR, lipedema does not substantially alter it. This requires a more in-depth and contextualised clinical interpretation.
ullamco qué dise usteer está la cosa muy malar.
Relevant studies or evidence on WHR and lipedema
Various studies have indicated that BMI should not be used as the sole diagnostic criterion in women with suspected lipedema. Recent studies emphasise that many patients are mistakenly classified as obese, which delays diagnosis and limits access to effective treatments.
At Lipedema Advanced Care, we use BMI as a complementary tool, integrated into a multidisciplinary assessment that includes:
This approach allows us to distinguish between obesity, lipedema, or combinations of both, ensuring an accurate diagnosis and personalised treatment.
The waist-to-hip ratio (WHR) is a simple, accessible and useful tool for assessing body fat distribution and estimating metabolic risk. Its main strength lies in identifying abdominal obesity, a key factor in the prevention of cardiovascular and metabolic diseases.
However, like any anthropometric measurement, it must be interpreted with caution. In complex clinical contexts such as lipedema, the WHI may be insufficient if not complemented by a detailed medical examination.
At Lipedema Advanced Care, we take a comprehensive approach: we combine tools such as WHI, BMI and bioimpedance with the clinical expertise of our multidisciplinary team. If you have symptoms consistent with lipedema or would like a complete assessment of your body composition, we are here to help.
Request an appointment with Dr Alexo Carballeira and our specialist team in Valencia.
Depende del objetivo clínico. El ICC es más útil para evaluar el riesgo cardiovascular porque refleja la acumulación de grasa abdominal, mientras que el IMC solo estima la relación entre peso y altura. Lo ideal es combinar ambos para una valoración más precisa.
Se recomienda al menos una vez al año en revisiones médicas preventivas. En pacientes con riesgo metabólico, obesidad o diagnóstico de lipedema, su control puede ser más frecuente según indicación médica.
Sí, pero con precaución. El ICC puede ser normal en mujeres con lipedema, ya que esta enfermedad afecta principalmente a las extremidades. Por eso, el resultado debe interpretarse dentro de una valoración clínica completa.
Sí. Los valores de referencia cambian según el sexo, y pueden requerir ajustes en adultos mayores. Las mujeres tienden a tener un ICC más bajo que los hombres debido a diferencias fisiológicas en la distribución de grasa.
No es recomendable usar el ICC como referencia durante el embarazo, ya que los cambios corporales naturales alteran la proporción entre cintura y cadera. En este caso, se deben emplear otros métodos de valoración médica.
