DESCRIPTION. Any abnormal lump or bump, or âmass, is considered a tumor. The term âtumorâ does not necessarily mean it is malignant or that it is a cancer. In fact, the vast majority of hand or wrist tumors are benign or non-cancerous. Any lump or bump in your hand or wrist is a tumor regardless of what causes it. CAUSES. Tumors can occur on the skin, such as a mole or a wart, or can occur underneath the skin in the soft tissue or even the bone.
1 If you can, avoid wearing socks and closed-toed shoes for at least 8 to 12 hours after your pedicure.  If you always get the same shade of nail polish on your toes, or rotate between a few hues, pick up matching bottles from the salon for at-home touch-ups.
These come in the form of plantar warts, the most common viral infection of the foot, and these too may not show up for months after the pedicure. You can pick these up in the salon or spa or neighborhood pool. Dark spots and a callus-like covering are common with plantar warts.