Medically reviewed by Lauren Schlanger, MD Key Takeaways A ganglion cyst is the most common cause of a lump on your hand or wrist and often feels round or oval. A carpal boss is a hard, bone-like lump ...

Finding a lump on your body can be worrying, but it’s important to know how to identify if it might be cancerous. Most lumps are benign and harmless, but cancerous lumps often have specific features.