When i bend my wrist there's like a lump an i hurts when i press is also get on and off pain in my wrist sometimes can't do push-ups?

Wrist ganglion: Wrist ganglions are rather common fluid filled cysts that often form on/about the back side (dorsum) of the wrist. The cysts fill with fluid more easily than they drain, thus leading to noticeable transient expansion/enlargement with overuse. These ganglia take up physical space and this can make bending the wrist quite painful with activities such as pushups. Orthopaedic evaluation recommended.