ive got lump in armpit but doesnt hurt its hard could it be cancer
The lump could be one of the lymph nodes that is in your arm pit, and it could be swollen for a number of reasons....infection, cold, etc. To be honest your best bet is to have it checked out by your doctor, especially if the lump lasts longer than 2 weeks or if it doesn't go in sync with your monthly cycle. Only the use of a diagnostic tool can say for certain what this lump may be - and even still 4 out of 5 lumps are non-cancerous. So get it checked out if it doesn't go away, or if it gets bigger or changes shape.
Good luck to you!