I have no family history of breast cancer. im 19 i can feel a lump in my breast but i've had it for so long. no pain. please help. i have pcos.

Needs to be checked: Most breast lumps in someone of your age are not malignant. Many are fluid containing cysts and are easily cured by fluid removal but..To be sure you need an exam and possibly some form of imaging.

Probably not serious: At age 19, a painless lump in your breast that has been present for a long time and is not changing is probably not of concern. It is likely a fibroadenoma or other totally benign mass. With that said, you should be evaluated by a breast specialist to be certain that it should not be removed. It is probably unrelated to the pcos.

Might need biopsy.: If you can feel the lump, that means a doctor could easily do a needle biopsy with the help of an ultrasound. That's the only way to know for sure. I agree with dr. Hoover that this is most likely a fibroadenoma. It's been there a long time and doesn't sound like it's grown, which makes it unlikely to be cancer. Still, a biopsy may put your mind at ease!