My mother has a spot on the back of her hand, near her middle finger that feels hard. It's raised too. It doesn't hurt though. Could this be cancer?

Without seeing your mother's hand and doing a thorough medical history and taking tests, no-one can tell what the lump on your mother's hand is. If you haven't see a doctor, this is your best bet.

A bump on the back of the hand could be one of several things, such as a fracture, a cyst, a build up of tissue, or tendonitis, to name just a few.

Reference: 

Amir M. Alemohammad, MD, et al. Incidence of Carpal Boss and Osseous Coalition: An Anatomic Study. In Journal of Hand Surgery. January 2009. Vol. 34A. Pp. 1 to 6.

Disclaimer

The information on this website is not intended to replace the advice or care from a healthcare provider. The information on this website is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments, or treatments. The information should NOT be used in place of visiting with your healthcare provider, nor should you disregard the advice of your healthcare provider because of any information you obtain on this website. Discuss any activities presented in this website with your healthcare provider before engaging in the activity.