Can a small lump on your knee be cancer?

A small lump on your knee can be a cause of concern, but it's important to remember that not all lumps are cancerous. There are many possible causes for a knee lump, including:

1. Ganglion Cysts: These are fluid-filled sacs that commonly appear on the wrist or hand, but can also develop on the knee. They are usually harmless and painless.

2. Baker's Cyst: This is a fluid-filled sac that forms behind the knee, often as a result of an underlying knee problem such as arthritis or a cartilage tear. It can sometimes cause pain or discomfort.

3. Lipoma: Lipomas are benign fatty tumors that can grow anywhere on the body, including the knee. They are usually soft, movable, and painless.

4. Tendinitis: Tendinitis occurs when the tendons that connect muscles to bones become inflamed. This can cause pain, swelling, and tenderness around the knee.

5. Arthritis: Arthritis is a condition that causes joint inflammation, which can lead to swelling and pain. There are several types of arthritis, including osteoarthritis, rheumatoid arthritis, and gout.

6. Bursitis: Bursitis is a condition that occurs when the small fluid-filled sacs (bursae) that cushion the joints become inflamed. This can cause pain, swelling, and stiffness.

7. Cancer: While it's rare, a lump on the knee could be a sign of cancer, such as soft tissue sarcoma or bone cancer. However, it's essential to note that cancerous lumps are usually accompanied by other symptoms like persistent pain, changes in skin texture or color, or rapid growth.

If you're concerned about a lump on your knee, it's crucial to consult with a healthcare professional. They can properly diagnose the cause of the lump and recommend the appropriate treatment. Never ignore a new or changing lump, especially if it's accompanied by additional symptoms.