Bacterial infections or abscesses can create swollen, painful lumps, often with redness or warmth. These usually need medical treatment.
4. Some Lumps May Be More Serious
Though rare, lumps on the hands can be caused by:
Tumors (benign or malignant)
Rheumatoid nodules – linked to autoimmune disorders
Bone or soft tissue cancers – uncommon but possible
5. When to See a Doctor
You should seek medical advice if a lump: