3. Can a lump in the armpit go away by itself?

This depends upon the cause. For example, a lump caused by a viral infection can resolve by itself. However, lumps due to cancer or lipomas do not go away by themselves; surgical intervention is required.

4. Can cancerous lumps be painful?

These may or may not be painful. Most cancerous lumps are hard and painless, while some may be painful.

5. Can deodorants cause armpit lumps?

Deodorants do not cause armpit lumps but antiperspirants can do so.