Many things can cause the formation of lumps and bumps on the hands and wrists. In some cases, the masses may visible and physically aggravating. In others, they may not be felt or noticed at all.
The inflammation causes the compartment a tunnel or a sheath around the tendon to swell and enlarge, making thumb and wrist movement painful. New mothers are especially prone to this type of tendonitis: caring for an infant often creates awkward hand positioning, and hormonal fluctuations associated with pregnancy and nursing further contribute to its occurrence. Pain over the thumb-side of the wrist is the main symptom.
Ganglion cysts are lumps that most commonly develop in the wrist. They're typically round or oval and are filled with a jelly-like fluid. Ganglion cysts are noncancerous lumps that most commonly develop along the tendons or joints of your wrists or hands.
Any abnormal lump or bump in the hand or wrist is considered a tumor. In fact, most hand and wrist tumors are benign not cancer. Tumors can occur on the skin, such as a mole or a wartor underneath the skin in the soft tissue or even the bone.
De Quervain's tendinosis occurs when the tendons around the base of the thumb are irritated or constricted. The word "tendinosis" refers to a swelling of the tendons. Swelling of the tendons, and the tendon sheath, can cause pain and tenderness along the thumb side of the wrist.
Trigger finger is a condition in which one of your fingers gets stuck in a bent position. Your finger may bend or straighten with a snap — like a trigger being pulled and released. It occurs when inflammation narrows the space within the sheath that surrounds the tendon in the affected finger.
Ganglion cysts are lumps around the hand and wrist that occur adjacent to joints or tendons. Ganglion cysts are very common. They are most frequently found on back of the wrist see Figure 1the palm side of the wrist, the base of the finger on the palm side, and the top of the end joint of the finger see Figure 2.
A tumor is an abnormal growth of tissue in the body. Tumor cells lack the ability to regulate themselves, thus producing more cells, which can form a mass. While many associate tumors with cancer, hand tumors typically are not cancerous.