Hand Lumps and Bumps: What’s Normal, What’s Not?


Our hands are our most versatile tools, essential for everything from typing a text to tying our shoelaces. So it’s natural to feel a pang of worry when we discover an unfamiliar lump or bump on our hand. But rest assured, most of the time, these little surprises are completely harmless. As a hand surgeon, I’ve seen my fair share of hand lumps and bumps. The good news is, the vast majority are benign, meaning they aren’t harmful. They’re often simply the body’s reaction to everyday wear and tear, the result of minor internal injuries, or sometimes a side effect of underlying conditions.

Lady holding her painful wrist with a lump

Common Culprits: Benign Hand Lumps

Let’s take a closer look at some of the usual suspects:

  • Ganglion Cysts: These are the most frequent hand lumps I encounter. They’re (joint) fluid-filled sacs that commonly pop up on the wrist or at the base of the fingers. They can change in size, sometimes disappearing and reappearing and might feel a bit tender or cause a mild ache.
  • Mucous Cysts: These smaller cysts typically form near the fingertips and are often linked to arthritis in the end joints of your fingers.
  • Lipomas (Lipomata): Soft, fatty lumps that move easily under the skin and rarely cause any pain. Think of them like a little extra padding.
  • Other Possibilities: While less common, conditions like Dupuytren’s contracture (a thickening of the tissues in the palm) and giant cell tumours (non-cancerous!) of the tendon sheath can also present as lumps or nodules.
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Volar (front) wrist ganglion

Why Do These Lumps Form?

The exact causes can be a bit of a mystery, but here are some key factors:

  • Overuse: Repetitive motions and strain on your hand’s joints and tendons can lead to inflammation and the formation of lumps.
  • Injury: Even seemingly minor past injuries can trigger the development of cysts or solid lumps over time.
  • Arthritis: Certain types of arthritis can cause inflammation and growths within hand joints.
  • Genetics: Some people are simply more prone to forming these benign hand lumps than others.

When to See a Hand Surgeon

While most hand lumps are nothing to worry about, it’s always wise to err on the side of caution. Here’s when I recommend scheduling a visit:

  • Rapid Growth: If the lump is getting bigger quickly, it’s worth getting it checked out.
  • Pain or Limited Function: A lump that’s painful or making it difficult to use your hand warrants evaluation. It might be pressing on a nerve or restricting movement.
  • Unusual Appearance: Lumps that look odd, have an irregular shape, or change color should be examined by a specialist.
  • Peace of Mind: Even if it seems harmless, there’s nothing wrong with seeking reassurance from a hand surgeon. We can put your mind at ease and confirm that the lump is nothing to worry about.

Diagnosis and Treatment: Your Path to Relief

  • Examination: Often, a simple physical exam is enough for me to diagnose a benign hand lump. I’ll look at its location, size, and how it feels to the touch.
  • Imaging: In some cases, I might recommend an X-ray, ultrasound, or MRI to get a better view of the lump and rule out other possibilities.

Treatment Options:

  • Observation: Many lumps go away on their own or remain stable and harmless. In these cases, I might simply recommend monitoring it.
  • Aspiration: If a cyst is causing discomfort, I can often drain the fluid with a needle, providing quick relief.
  • Surgical Removal: When a lump is painful, limiting your hand’s function, or causing cosmetic concerns, surgical excision is a straightforward option.

Key Takeaways

  1. Most hand lumps are benign and not a cause for alarm.
  2. Monitor any new lumps and report sudden changes to your doctor.
  3. I can provide expert diagnosis and personalized treatment.
  4. Don’t let an unexplained lump on your hand worry you. Come and see me to get the answers and peace of mind you deserve.


The information provided in this blog is intended for general knowledge and informational purposes only, and does not constitute medical advice. It is essential to consult with a qualified healthcare professional for diagnosis, treatment recommendations, and any questions related to a medical condition. The author, contributors, and publisher of this blog shall not be liable for any direct or indirect losses or damages related to the use of the information presented herein.

Picture of Ali Phillips - Hand specialist

Meet Ali Phillips, Your Orthopaedic Hand and Trauma Surgeon

Ali Phillips is a fellowship-trained hand surgeon dedicated to educating and empowering his patients. He believes in clear information and shared decision-making. When not in the clinic, you might find him wing foiling or on a cycling adventure. Connect: alistairphillips.co.uk @ali.thehandsurgeon on IG, Twitter/X, Threads, FB and TikTok. Find out more: About page