A lipoma is a slow-growing, benign fatty lump that develops under the skin. These growths are made up of fat cells that cluster together in a capsule-like structure. Unlike cancerous tumors, lipomas are not dangerous to your health and do not spread to other parts of your body. Medical professionals classify them as benign soft tissue tumors, which means they are non-cancerous.
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Lipomas can appear anywhere on the body where fat tissue exists, though they most commonly develop on the shoulders, back, neck, arms, and thighs. They vary in size from pea-sized bumps to lumps several inches across. Most people develop their first lipoma between ages 40 and 60, though they can occur at younger ages. Studies suggest that lipomas affect between 1 and 2 percent of the general population, making them one of the most common benign skin growths.
The exact cause of lipomas remains unclear, though researchers have identified several factors that may contribute to their development. Genetics play a significant role—if your parents or close relatives had lipomas, your risk increases. Certain genetic conditions, such as familial multiple lipomatosis, cause people to develop many lipomas throughout their lifetime. Additionally, obesity, lack of physical activity, and metabolic disorders like diabetes and high cholesterol may increase the likelihood of lipoma formation.
Lipomas grow very slowly, sometimes taking months or years to become noticeable. Most people discover them by accident while bathing or during a medical examination. They typically feel soft, moveable, and painless when touched. However, if a lipoma grows large enough or develops in certain locations, it may cause discomfort by pressing on nerves or restricting movement.
Practical takeaway: Understanding that lipomas are common, benign growths helps you recognize whether a skin bump might be a lipoma. If you notice a new soft lump under your skin that grows slowly and feels moveable, it may warrant a discussion with a healthcare provider for proper identification.
Proper diagnosis of a lipoma typically involves a physical examination by a qualified healthcare provider. During this exam, your doctor will feel the lump, note its size and location, and ask about how long it has been present and whether it has changed. In most cases, the physical characteristics alone—soft texture, moveable nature, and slow growth—allow doctors to identify a lipoma without additional testing.
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However, your doctor may recommend imaging tests to confirm the diagnosis, especially if the lump is unusually large, painful, or located in an area where it could affect underlying structures. Ultrasound is commonly used because it safely visualizes soft tissue and can distinguish between fatty tissue and other types of growths. Magnetic resonance imaging (MRI) provides detailed images and helps doctors rule out other conditions. In rare cases, a small tissue sample (biopsy) may be taken to confirm the growth is benign, particularly if the lump shows unusual characteristics.
You should schedule an appointment with a healthcare provider if you notice a new lump under your skin, especially if it continues to grow, becomes painful, or affects your movement or appearance. Additionally, seek medical evaluation if the lump appears suddenly, feels hard or fixed to the skin, or is accompanied by other symptoms. While most new lumps are benign, professional assessment ensures accurate identification and rules out more serious conditions.
Different types of doctors can evaluate lipomas. Your primary care physician can perform an initial assessment and provide referrals if needed. Dermatologists specialize in skin conditions and can expertly identify skin and soft tissue growths. Surgical specialists and plastic surgeons handle removal procedures if that becomes necessary. Some patients also consult with general surgeons, who are experienced in evaluating and removing benign tumors.
During your appointment, be prepared to describe when you first noticed the lump, how it has changed over time, whether it causes any symptoms, and your family history of similar growths. Photographs documenting the lump's appearance and size progression can provide useful information. Honest communication about your concerns helps your healthcare provider determine whether the lipoma requires monitoring, investigation, or treatment.
Practical takeaway: Professional medical evaluation is important to confirm that a lump is indeed a lipoma rather than another condition. Contact a healthcare provider if you have concerns about a new skin growth, and gather information about its history and characteristics before your appointment.
For most people, lipomas do not require treatment because they pose no health risk and grow very slowly. Many individuals choose to monitor lipomas rather than pursue removal, particularly when the growths are small or located in inconspicuous areas. Monitoring involves observing the lump regularly and noting any changes in size, shape, texture, or symptoms. This approach allows you to track whether the lipoma remains stable or shows signs of growth that might warrant professional intervention.
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Establish a simple monitoring routine by checking the lipoma monthly. Use your fingers to feel its size and note any changes in how easily it moves under the skin or whether new symptoms develop. Taking photographs with a ruler or coin for size reference can help you document progress over time. Many people keep brief notes about their observations, which provides valuable information to share with a healthcare provider during check-ups.
Lifestyle modifications may help prevent new lipomas from forming, though they will not eliminate existing growths. Maintaining a healthy weight through balanced nutrition and regular physical activity supports overall metabolic health. A diet rich in vegetables, fruits, whole grains, and lean proteins, combined with reduced intake of processed foods and added sugars, supports healthy body composition. Regular exercise—at least 150 minutes of moderate activity weekly—improves circulation and metabolic function.
Certain environmental factors warrant attention. Avoid repeated trauma or pressure to areas where lipomas exist, as this may stimulate growth. Protect the area from friction by wearing appropriate clothing and avoiding prolonged pressure. If a lipoma becomes irritated from rubbing against clothing or equipment, consider protective coverings or adjustments to prevent further irritation.
Natural remedies and over-the-counter products marketed for lipoma reduction have not been scientifically proven to shrink or eliminate these growths. Topical creams, supplements, and alternative treatments lack clinical evidence supporting their effectiveness. Relying on unproven treatments may delay appropriate medical evaluation if the lump requires attention. However, supporting overall health through good nutrition and lifestyle habits creates an optimal environment for your body's natural functions.
Practical takeaway: Establish a monthly self-monitoring routine using observation, touch, and photography to track your lipoma's stability. Combine this with healthy lifestyle habits that support overall wellness, but understand that existing lipomas will not disappear without professional treatment.
Several removal methods exist for lipomas, each with different effectiveness rates, recovery times, and considerations. Understanding these options helps you make informed decisions about whether removal is right for your situation. The choice of method depends on factors including the lipoma's size, location, your overall health, and your preferences regarding scarring and recovery time.
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Surgical excision remains the most effective and widely used removal method. During this procedure, a surgeon makes an incision over the lipoma, carefully separates the fatty tissue from surrounding structures, and removes the entire capsule. This approach offers the lowest recurrence rate—studies show that less than 5 percent of surgically removed lipomas return. The procedure typically takes 20 to 45 minutes depending on the lipoma's size and location. Recovery usually involves mild discomfort for several days and temporary activity restrictions for one to two weeks. Stitches typically dissolve or require removal within one to two weeks.
Steroid injections represent a less invasive option that may reduce lipoma size in some cases. A healthcare provider injects a steroid solution directly into the lipoma, which can cause partial shrinkage over several weeks. However, this method does not remove the entire growth and works inconsistently—some lipomas respond well while others show minimal change. Multiple injections may be necessary, and recurrence is common. This approach suits people seeking a non-surgical option for small lipomas.
Liposuction-assisted removal involves suctioning out the fatty tissue through a small cannula (thin tube). While this causes less scarring than traditional excision, the lipoma capsule may remain, leading to higher recurrence rates of 10 to 15 percent compared to complete surgical removal. This method works best for smaller lipomas and those in cosmetically sensitive areas where minimal scarring is important.
This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.