Lipedema is a chronic disease of adipose tissue that affects almost exclusively women and is characterised by an abnormal accumulation of fat in the limbs, especially the legs and, in some cases, the arms. This condition not only alters the body shape, but also causes pain, fatigue and a significant functional and emotional impact.
For proper assessment and treatment, it is essential to understand how lipedema is classified. There are two main classification systems: by grade, which indicates the progression and severity of the disease; and by type, which describes the anatomical distribution of the affected tissue.
In this article, we explain clearly and in detail the grades and types of lipedema, how to identify them, and why knowing this classification can make a difference in the therapeutic approach and quality of life of the patient.
Lipedema is a chronic, progressive disease of unknown origin that affects subcutaneous fatty tissue. It is characterised by an abnormal, symmetrical distribution of fat, predominantly in the legs and, in many cases, also in the arms. Unlike obesity, this accumulation of fat is resistant to diet and exercise and is often accompanied by pain, heaviness and easy bruising.
Recognising and correctly identifying lipoedema is essential in order to treat it properly. To do this, two complementary classification systems are used: by clinical grades, which indicate the level of tissue involvement; and by morphological types, which indicate the areas of the body where the pathological fat is located.
Lipedema is not simply a cosmetic problem or a form of obesity. It is a condition that can progress if not properly diagnosed and treated. In its early stages, it can go unnoticed or be confused with fluid retention or localised weight gain. However, over time, it tends to worsen, causing obvious morphological changes, functional discomfort and even limited mobility.
The progression of lipedema is influenced by hormonal and hereditary factors and, in some cases, by concomitant overweight. Therefore, early detection and accurate classification of the clinical stage are crucial for initiating effective treatment and preventing its progression.
The grades of lipedema allow us to assess the level of alteration of the adipose tissue and its impact on the patient’s anatomy and functionality. This classification ranges from grade 1, where the skin is still smooth, to grade 4, where there is advanced lipedema associated with secondary lymphedema.
Below, we will describe each grade in detail to facilitate clinical identification:
Each grade can affect the patient differently, both in terms of symptoms and functional limitations. Therefore, correct assessment is essential in order to decide on the most appropriate type of treatment in each case.
Classifying lipedema into grades allows the progression of the disease to be established. This assessment is essential for planning effective treatment and anticipating possible complications. Although the basic symptoms—pain, heaviness, tendency to bruise—may be present in all cases, the clinical expression varies considerably from one grade to another. It is important to note that the grade is independent of the level of pain, so a patient with grade 1 lipedema may experience more pain than a patient with grade 3 lipedema.
Grade 1 represents the earliest stage of lipedema. At this stage, the skin remains smooth to the touch and to the eye, with no obvious irregularities. However, the subcutaneous tissue already shows increased density and fine fatty nodules, which can be felt beneath the skin’s surface.
At this stage, it is common to observe moderate disproportion in the legs, especially in the thighs or calves, which does not improve with exercise or diet. Patients may notice a feeling of heaviness and sensitivity to touch, although the physical appearance can easily be confused with cellulite or localised fat deposits.
This grade is the most difficult to diagnose, but also the one that responds best to conservative treatment if detected early.
In stage 2, visible irregularities begin to appear on the surface of the skin, with a texture reminiscent of a mattress or padding. The presence of fatty nodules is more pronounced and may be accompanied by frequent pain in the affected areas.
The abnormal fat is distributed symmetrically on the thighs, knees, and calves, and in some cases may also affect the arms. At this stage, symptoms worsen during the day, especially if the patient remains standing for long periods of time.
This intermediate stage already compromises body aesthetics more obviously, and is usually the point at which many patients seek medical attention after having failed with diets or conventional aesthetic treatments.
Grade 3 is characterised by a massive accumulation of fat, which causes obvious deformities in the silhouette, especially in the thighs, knees and ankles. The skin irregularities are deep and the adipose tissue has a dense consistency, with large fat lobules.
At this stage, the functional impact is considerable. Patients may experience limited mobility, difficulty walking or exercising, and persistent discomfort that interferes with daily life.
In addition to pain and sensitivity, signs of venous or lymphatic compression may appear, such as mild oedema that increases with prolonged activity.
Grade 4, also known as lipolymphedema, occurs when lipedema has progressed to affect the lymphatic system. In this phase, persistent oedema, resulting from insufficient lymphatic drainage, is added to the fat accumulation.
The increase in volume is severe and is accompanied by chronic inflammation, skin changes (such as fibrosis) and significant functional impairment. The legs may appear massive and unstructured, with alterations in gait and body posture.
This stage requires a multidisciplinary approach and, in many cases, specialised surgical interventions together with complex decongestive therapy to improve quality of life.
In addition to being classified by grade, lipedema is also categorised into morphological types according to the location of the affected adipose tissue. This classification by anatomical area allows for a more personalised diagnosis and more effective adaptation of surgical and conservative treatment.
Although some patients present a combination of types, the following categorisation describes the most common patterns.
In type 1, pathological fat accumulation is located exclusively in the buttocks and pelvis area, including the peritrochanteric region (saddlebags). It can produce an ‘inverted heart’ or ‘pear’ shape, with obvious disproportion between the lower and upper body.
This type may go unnoticed in the early stages, especially if the patient has a normal body mass index. However, the tissue is usually sensitive to touch and resistant to volume loss through diet or exercise.
Type 2 affects the gluteal region and thighs up to just above the knees, excluding the calves and ankles. It is common to see an increase in volume on the inner thighs and around the knee, which can cause folds or fatty lobules that interfere with walking or body aesthetics.
In this pattern, the knees are often surrounded by soft, painful fat, which can be confused with localised fat or advanced cellulite.
Type 3 is one of the most common types and is characterised by a continuous distribution of lipoedema from the hips to the ankles, excluding the feet. This distribution gives rise to the classic image of ‘columnar legs’ or inverted column shape, where the circumference increases progressively downwards.
In this type, it is common for the patient to have an extremely disproportionate body shape, with a thin torso and bulky legs, which can have a significant emotional impact. Constant pain and spontaneous bruising are also common.
Type 4 occurs when lipedema also affects the arms, particularly the back, sides and upper arms. It can appear on its own or in combination with other types (1, 2 or 3). This presentation can be more difficult to diagnose if the lower limbs are not affected.
Arms affected by lipedema are painful to the touch, enlarged and have soft or nodular fat, without affecting the hands. In advanced stages, it can interfere with mobility and cause functional discomfort.
It is estimated that the arms are affected in 30-40% of patients with lipedema, although recent studies have shown an incidence of up to 70.3% of patients, with exclusive involvement of the arms (Type 4A) being rare. According to these latest studies, type 4 lipedema would be the most common.
Type 5 lipedema affects only the calves, causing a noticeable increase in volume in this area, but leaving the thighs, knees, and feet unaffected. It is less common than the previous types, but no less relevant from a clinical and functional point of view.
Patients with this type have painful calves that are firm to the touch and appear disproportionate to the rest of the body. The absence of involvement in the feet remains a key diagnostic criterion for differentiating it from lymphedema. In some cases, it may coexist with signs of venous insufficiency, which complicates its detection.
In many cases, lipedema begins by affecting only the calves and then spreads to other areas.
This type usually has a significant emotional impact, as the volume in the lower leg alters aesthetics and makes it difficult to wear shoes or tight-fitting clothing.
Although often used interchangeably, the grades and types of lipedema refer to different aspects of the disease:
A patient may have, for example, type 3 grade 2 lipedema, which means that the abnormal fat is distributed from the hips to the ankles (type 3) and presents moderate nodules and rippling (grade 2). In any case, the grade and level of pain are independent, and a patient with grade 1 may experience more pain than another with grade 3.
Understanding this differentiation is essential for planning the most appropriate treatment in each case, especially if surgery is considered as a therapeutic option.
Correct diagnosis of the type and degree of lipedema is the first step in providing patients with personalised and effective care. Not all forms of lipedema progress in the same way or respond in the same way to conservative or surgical treatments.
At Lipedema Advanced Care, we promote a comprehensive assessment based on clinical experience, scientific evidence, and a multidisciplinary approach. Accurately identifying the stage and distribution of lipedema allows us to design more effective treatment plans, improve symptoms, and, above all, restore the quality of life of those suffering from this disease.
