Key Takeaway
A lipoma is a benign, slow-growing lump of fatty tissue that usually forms just under the skin. It often feels soft, movable, and painless. Most lipomas are harmless and may not need treatment unless they become larger, painful, uncomfortable, or cosmetically concerning. When treatment is needed, surgical removal is usually the most effective option. Any new, growing, painful, or changing lump should be examined by a doctor for an accurate diagnosis.
Most lipomas are harmless, painless, and do not need urgent treatment, but any new, growing, painful, or unusual lump should be checked by a doctor to confirm the diagnosis and rule out other conditions. In this blog, we explain what a lipoma is, its common symptoms, possible causes, how it is diagnosed, and when treatment or removal may be recommended.
What is a Lipoma?
A lipoma is a benign, non-cancerous lump made up of fat cells. It usually develops just beneath the skin, often between the skin and the underlying muscle layer. Lipomas are among the most common benign soft tissue growths in adults and are seen most often in middle age, although they can occur at any age.
Lipomas commonly appear on the neck, shoulders, back, abdomen, arms, and thighs. They are usually small, soft, movable, and painless, but some may slowly increase in size over time. Most people develop only one lipoma, while some may have multiple lipomas in different areas of the body.
Types of Lipomas
Lipomas can differ based on their location and the type of tissue they contain. While most lipomas feel similar from the outside, doctors may classify them into different types based on clinical examination, imaging, or biopsy findings.
- Conventional Lipoma: This is the most common type of lipoma. It is made up mainly of white fat cells and usually appears just beneath the skin.
- Fibrolipoma: This type contains both fat and fibrous tissue. Because of the fibrous component, it may feel slightly firmer than a regular lipoma.
- Angiolipoma: An angiolipoma contains fat cells along with blood vessels. It is more likely to be painful or tender, especially when pressed.
- Spindle Cell Lipoma: This is an uncommon type that contains spindle-shaped cells along with fat cells. It is usually seen on the back, neck, or shoulders, especially in older adults.
- Pleomorphic Lipoma: This type is closely related to spindle cell lipoma and contains fat cells along with cells of different shapes and sizes. Although the name may sound concerning, it is still considered benign.
- Myelolipoma: This is a rare fatty growth that also contains blood-forming tissue. Unlike most lipomas, it is usually found in deeper areas of the body, such as the adrenal gland, rather than just under the skin.
In most cases, the exact type of lipoma is not a concern unless the lump is painful, growing, deep-seated, unusually firm, or difficult to diagnose on examination.
Symptoms of Lipoma
Lipomas are often noticed by chance, either while bathing, changing clothes, or feeling a soft bulge under the skin. In most cases, they grow slowly and do not cause pain.
Common signs of a lipoma include:
- A soft, rubbery, or dough-like lump under the skin
- A lump that moves easily when touched
- Slow growth over months or years
- A smooth, rounded swelling with well-defined edges
- Little to no pain in most cases
- Mild discomfort or a dull ache if the lump presses on nearby nerves, blood vessels, or tissues
- More than one lump in different parts of the body in some people
Lipomas are usually painless. Pain is more commonly seen in angiolipomas or in lipomas that become large enough to press on surrounding structures. A lump that grows quickly, feels hard or fixed, becomes painful, or changes in appearance should be examined by a doctor.
What Causes a Lipoma?
The exact cause of lipoma formation is not fully understood. A lipoma develops when fat cells multiply and collect in one area, forming a soft lump beneath the skin. In many cases, there is no clear reason why this happens.
However, some factors may increase the likelihood of developing lipomas:
- Family History: Lipomas can run in families. A person may be more likely to develop a lipoma if a close family member, such as a parent or sibling, has had one.
- Genetic Conditions: Some rare inherited conditions are linked with multiple lipomas. These include familial multiple lipomatosis, Dercum’s disease, Gardner syndrome, and Madelung’s disease.
- Age: Lipomas are more commonly seen in adults between 40 and 60 years of age, although they can develop at any age.
- Previous Injury: In some cases, a lipoma may be noticed after an injury in the same area. However, it is not always clear whether the injury causes the lipoma or simply draws attention to a lump that was already present.
Obesity and high cholesterol are sometimes discussed in relation to lipomas, but current medical sources do not confirm them as direct causes. Maintaining a healthy lifestyle is important for overall health, but it does not necessarily prevent lipomas from forming.
Is a Lipoma Cancerous?
No. A lipoma is a benign, non-cancerous fatty lump. It does not usually invade nearby tissues or spread to other parts of the body. Most lipomas remain harmless and do not require treatment unless they become painful, grow larger, restrict movement, or cause cosmetic concern.
However, not every lump under the skin should be assumed to be a lipoma. A rare cancer called liposarcoma can also develop in fatty tissue, but it behaves differently from a typical lipoma. Liposarcomas may grow more quickly, feel firmer or fixed, become painful, or develop deeper in the body, such as in the abdomen, thigh, arm, or leg muscles.
Any lump that grows rapidly, feels hard or fixed, becomes painful, is deep-seated, or changes in size or appearance should be examined by a doctor promptly. This helps confirm whether it is a harmless lipoma or another condition that needs further evaluation.
Lipoma vs Sebaceous Cyst: What is the Difference?
Lipomas and cysts are both common lumps that can appear under or near the skin, which is why they are often confused. However, they are not the same.
A lipoma is made up of fat cells. It usually develops just beneath the skin and often feels soft, rubbery, and movable when touched. Lipomas usually do not have a central opening and do not discharge fluid or pus.
A Sebaceous cyst, on the other hand, is a sac-like lump that may contain fluid, keratin, or semi-solid material. It may have a small visible opening or dark spot on the surface, known as a punctum. Cysts can sometimes become inflamed, red, swollen, tender, or discharge material, especially if they rupture or become infected.
A doctor can often tell the difference between a lipoma and a cyst through physical examination. In some cases, an ultrasound may be advised to confirm the diagnosis.
How is a Lipoma Diagnosed?
In most cases, a doctor can diagnose a lipoma by examining the lump. During the examination, the doctor may check its size, texture, mobility, location, and whether it causes pain.
Further tests may be advised if the lump is large, deep, painful, growing quickly, unusually firm, or difficult to diagnose on examination. These tests may include:
- Ultrasound: This is commonly used to assess a lump under the skin. It can help confirm whether the lump is fatty in nature and distinguish it from a cyst or another soft tissue swelling.
- CT Scan: A CT scan may be advised for larger or deeper lumps, especially when the lump is located near important structures or inside deeper areas of the body.
- MRI Scan: MRI provides detailed soft tissue images and may be recommended when a lump is deep, large, or has features that need closer evaluation.
- Biopsy: A biopsy is not usually needed for a typical superficial lipoma. However, it may be recommended if imaging is unclear or if the doctor needs to rule out a more serious condition.
When Should You See a Doctor for a Lipoma?
Most lipomas are harmless and do not need urgent treatment. However, it is important to consult a doctor if:
- The lump is growing quickly
- The lump becomes painful or tender
- The skin over the lump becomes red, warm, or inflamed
- The lump feels hard or fixed instead of soft and movable
- The lump is deep-seated or larger than usual
- The lump affects movement, comfort, or daily activities
- You are unsure whether the lump is a lipoma, cyst, or something else
Any new, changing, painful, hard, or rapidly growing lump should be checked by a doctor. A proper diagnosis helps confirm whether it is a harmless lipoma or another condition that needs treatment.
Treatment Options for Lipoma
Most lipomas do not need treatment. If a lipoma is small, painless, and not causing any functional or cosmetic concern, the doctor may advise simple monitoring instead of immediate removal.
Treatment may be recommended if the lipoma:
- Increases in size
- Causes pain, discomfort, or pressure symptoms
- Restricts movement
- Becomes cosmetically concerning
- Is difficult to diagnose confidently on examination
The main treatment options include:
Surgical Excision
This is the most reliable and commonly used treatment for lipoma removal. The surgeon makes a small incision over the lump and removes the lipoma. For many superficial lipomas, the procedure can be done under local anaesthesia and may not require a hospital stay. Once completely removed, lipomas usually have a low chance of coming back.
Liposuction
Liposuction may be used in selected cases, especially when a smaller scar is preferred. In this method, fatty tissue is removed through a small opening using suction. However, liposuction may not always remove the entire lipoma capsule, so there may be a higher chance of incomplete removal or recurrence compared with surgical excision.
Steroid Injections
Steroid injections may sometimes be used to shrink a lipoma, but they usually do not remove it completely. This option is not commonly used as the main treatment for typical lipomas and is generally considered only in selected cases.
The most suitable treatment depends on the lipoma’s size, location, depth, symptoms, and whether there is any diagnostic uncertainty. A general surgeon can assess the lump and recommend whether monitoring, imaging, or removal is needed. If the lump has unusual features, further evaluation may be advised before treatment.
Tips for Monitoring a Lipoma at Home
If a doctor has confirmed that the lump is a lipoma and advised monitoring, simple observation at home can help you notice any changes early.
You can:
- Check the size from time to time using a ruler
- Note whether the lump feels softer, firmer, or less movable than before
- Watch for new pain, tenderness, redness, warmth, or swelling
- Keep track of how long the lump has been present
- Return to the doctor if the lump grows, becomes painful, or changes in any way
There are no proven dietary changes, supplements, oils, or home remedies that can shrink or remove a lipoma. Do not try to squeeze, drain, cut, or manipulate the lump at home, as this can lead to pain, infection, scarring, or delayed diagnosis of another condition.
Last Word
A lipoma is usually a harmless, slow-growing fatty lump that often needs no treatment beyond periodic monitoring. However, not every lump under the skin is a lipoma, and getting an accurate diagnosis is always the safest first step. If a lump is growing, painful, changing, affecting movement, or causing concern, a specialist evaluation can help determine whether monitoring, further tests, or removal is needed.
At Sarvodaya Hospital, Faridabad, the Department of General Surgery and Surgical Oncology provides evaluation and treatment for soft tissue lumps, including lipomas. From diagnosis to surgical removal where required, the team follows a patient-centred approach to recommend the most suitable treatment based on the size, location, symptoms, and nature of the lump.
If you have noticed a new lump, a growing lump, or a lump that is causing pain or discomfort, consult the specialists at Sarvodaya Hospital for an accurate diagnosis and appropriate treatment guidance. Book a consultation online or call at 9654511414. For WhatsApp support, message at +91 8929688238.
