A lump on your leg might worry you, but in most cases, there's no need to panic. Benign growths happen more than nine times as often as cancer. The most common soft tissue lump people discover turns out to be a lipoma - basically a fatty tumour.
Your body can develop lumps, bumps, or growths under the skin. These hard lumps under your leg's skin are typically harmless. Small lumps on leg might take time to develop without causing pain or other symptoms. Soft tissue sarcoma, though rare, can affect muscles and other soft tissues that lead to cancerous tumours. These sarcomas tend to grow slowly, and people might have one for months or even years before they notice anything wrong.
This article walks you through different types of leg lumps, ranging from painless ones to those in leg muscles.
Your leg can develop abnormal bumps, swellings, or masses anywhere from thigh to ankle, either on or under the skin. Some feel soft and move easily, others stay fixed and feel a hard lump on the leg. The good news is that most of these lumps are benign and don't cause harm, especially the soft ones that roll easily under your fingers.
A leg lump might come with these signs:
Different conditions can trigger leg lumps:
Your chances of getting leg lumps increase with the following:
Some leg lumps can lead to problems if you leave them untreated:
Most leg lumps stay harmless. However, you should see a doctor if you notice sudden changes in size or colour or new symptoms appear.
Doctors start by asking specific questions about your leg lump. They need to know the time you first noticed it, any changes in size or appearance, whether it causes pain or discomfort, and other symptoms you might experience.
The physical examination involves checking the lump's size, shape, and texture. Your doctor will test its mobility when touched. Cancerous lumps usually feel large, hard, and painless, and they appear without warning. These features help determine what tests might be needed.
After the original assessment, your doctor might recommend several tests:
The diagnosis completely determines your treatment options.
Most benign lumps don't need treatment unless they cause pain or grow bigger. Doctors might suggest these options for lipomas (fatty lumps):
Infections typically need antibiotics, while doctors might drain fluid-filled cysts.
Soft tissue sarcoma, though rare, usually requires surgery to remove the tumour. Radiation therapy or chemotherapy might follow.
Your leg lump needs medical attention if it:
A lump in your leg might cause worry, but evidence shows these concerns aren't usually warranted. The vast majority of leg lumps are harmless growths like lipomas or cysts that don't need treatment. Cancerous lumps exist, but they're nowhere near as common and need proper medical attention.
Doctors diagnose these lumps through physical exams and imaging tests. X-rays, ultrasounds, or biopsies help when needed. The treatment path depends on what caused the lump. Many lumps don't need any intervention, while some might need basic procedures or medicine.
Note that you should check with a doctor if your lump grows beyond two inches, keeps hurting, or shows up with worrying signs like fever or weight loss. Quick medical checks will give you the right care if you need it.
A leg lump can be cancer, specifically a type called soft tissue sarcoma. In spite of that, this rarely happens – benign growths occur nine times more frequently than cancerous ones. Soft tissue sarcomas make up less than 1% of all cancers in adults.
Cancerous lumps show these characteristics:
Not every lump needs immediate medical attention. Most lumps under the skin don't cause concern. The warning signs that suggest you should see a doctor include: