Types of Lipoma


What Is Lipoma?

A lipoma is a benign tumor that grows beneath the skin and is primarily formed of fat cells. Lipomas, which are often slow-growing and non-cancerous types of fatty tumors, manifest as soft, rubbery lumps that are painless. These growths can be of various sizes and are frequently moveable beneath the skin. Lipomas are most typically found on the upper torso, arms, or thighs, although they can appear anywhere in the body.

While the specific aetiology of lipoma development is unknown, genetic susceptibility, anomalies in adipose tissue regulation, age-related variables, hormonal impacts, and potential correlations with traumas are all thought to play a role. Lipomas, which are typically harmless, may be surgically removed for cosmetic purposes or if they cause discomfort. For an accurate diagnosis and suitable management, regular monitoring and contact with healthcare specialists are required.

What Causes Lipoma?

The exact cause of lipomas is unclear. However, they are assumed to be caused by a mix of hereditary and environmental factors. Lipoma risk factors include:

Genetic Predisposition:

A genetic predisposition is an essential element in the development of lipomas. Individuals with a family history of lipomas are more prone to acquiring these fatty tumors. According to research, some genetic variables may impact the control of fat cell proliferation, contributing to the production of lipomas.

Adipose Tissue Dysfunction:

Lipomas are caused by an expansion of adipose tissue, the specialized connective tissue that stores fat. Abnormalities in the regulation of fat cell formation or activity cause lipomas. To better understand the underlying reasons for lipoma development, researchers are investigating the molecular and cellular pathways involved in adipose tissue anomalies.

Lipomas are more frequent in individuals in their forties and fifties. They can develop at any age, although their incidence rises with age. The causes for this age link are unknown, but it implies that age-related changes in tissue composition or cellular processes may contribute to the formation of lipoma.

Hormonal Factors:

Some research suggests a relationship between hormonal factors and lipoma formation. Hormones are essential regulators of several physiological processes, including fat metabolism. Hormone fluctuations may contribute to the unregulated reproduction of fat cells, resulting in the production of lipomas.

Injuries and traumatic events:

While the link has not been shown consistently, some occurrences of lipomas have been linked to traumas or damage to specific parts of the body. Damage to adipose tissue following an injury is thought to cause aberrant cell development, leading to the creation of a lipoma. More study is needed, however, to determine the link between trauma and lipoma growth.

Lipomas have no particular preventive actions because the actual aetiology is unknown. Genetic factors have a role, and while lipomas are usually benign, preventative measures are rarely addressed.

What Are the Main Types of Lipoma?

Lipomas differ in appearance depending on their location, depth, and composition. Understanding the different types of lipoma helps in effective diagnosis and management:

Lipomas of the Superficial Subcutaneous Tissue:

These lipomas, the most frequent variety, form just beneath the skin. Their superficial position easily distinguishes them, and they are frequently soft, moveable, and painless.

Deep Intramuscular Lipomas (DILs):

These lipomas might be more challenging to identify since they are located within the muscles. If they put pressure on nerves or muscles, they might cause discomfort or agony. Imaging examinations, such as MRI, are frequently used to provide an accurate diagnosis.

Lipomas of the Intradermal Layer:

Intradermal lipomas are found inside the layers of the skin and are generally smaller and more visible cosmetically. They can be distinguished by their placement in the skin as opposed to the underlying tissues.


Hibernoma is an uncommon form of lipoma made up of dark fat cells. Hibernomas are distinctive in their composition and may show specific features on imaging examinations. They are often seen in the neck, shoulders, and upper back.

Lipoma Pleomorphic:

Pleomorphic lipomas, which are characterized by a mixture of mature fat cells and other cells, are commonly found in the neck, shoulders, and back. This form of lipoma is more frequent in elderly people and can have a variety of appearances under the microscope.

A physical examination is commonly used to determine the typical feel and look of lipomas. Imaging investigations, such as ultrasonography or MRI, may be used to confirm the diagnosis or assess the extent of deeper lipomas. Lipomas do not usually resolve on their own. They are considered permanent structures, and surgical intervention is a popular and successful method of eradication.


Lipomas are typically innocuous types of fatty tumors clinically, and many people opt not to seek treatment unless the growths cause discomfort or are cosmetically bothersome. For those who want intervention, surgical removal remains a feasible option, and the process is often simple with a low recurrence rate. However, careful thought is required in cooperation with healthcare specialists to measure the advantages of removal against potential hazards.

While the origins of lipomas remain unknown, the area is improving as a result of a better understanding of genetics, cellular biology, and clinical findings. The quest to discover the mysteries of lipoma formation continues, with the hope of improving diagnostic precision and developing more tailored therapy techniques in the future.


Are lipomas cancerous?

Lipomas are non-cancerous tumors made up of normal fat cells. They are not malignant. However, it is critical to check with a healthcare expert for a correct diagnosis to rule out any malignancies.

What are the causes of lipoma to develop?

The specific cause of lipomas is unknown. However, a variety of reasons contribute to their formation, including genetic susceptibility, anomalies in adipose tissue regulation, age-related impacts, hormonal variables, and possible correlations with accidents.

Are lipomas painful?

Different types of Lipomas are usually painless, but if they push on nerves or muscles, they can cause discomfort or pain. Lipomas in deeper tissues are more usually connected with this symptomatology.

What is the treatment for lipomas?

Treatment is usually unnecessary unless the lipoma causes discomfort, or suffering, or is unsightly. Surgical removal is a popular option, and the surgery is typically simple, with a low recurrence rate.

Are Lipomas common?

Lipomas are prevalent, particularly in middle-aged individuals. While they are typically safe, their occurrence rises with age. Lipomas affects many people and may not require treatment until they cause symptoms or cosmetic issues, making them a common medical condition.