I'm a 34 year old virgin who for the past 3 months had dischanrge form right nipple. It is either whitish colour of green. Could this be cancerous?

You need to consult your doctor.

This is something you deffinately need to talk to a Doc for. It could be an infection within your breast.

Ask the Doc though.

Not all discharge is cancerous but when it's coming only from one breast it is considered a red flag.

As others have said, seek a physician or even go to your nearest walk in clinic.

Sarah