Found a Lump on Your Hand? The Possible Causes May Surprise You
Discovering a lump on your hand can be unsettling. You might notice a small bump near your wrist while getting dressed, feel a firm spot beneath your palm, or see a swelling appear beside one of your finger joints. Sometimes it causes no pain at all. Other times, it makes gripping objects, typing, or bending a finger uncomfortable.
The good news is that many hand lumps are caused by noncancerous conditions, and some disappear without treatment. However, not every lump has the same explanation, and its appearance alone cannot reliably tell you what it is.
From fluid-filled cysts to skin growths and changes in the tissues beneath the skin, here are some possible causes of a lump on your hand—and the signs that mean you should have it checked.
- Ganglion Cysts: One of the Most Common Causes
A ganglion cyst is one of the most common explanations for a lump on the hand or wrist. It is a small sac filled with thick, jelly-like fluid that develops near a joint or tendon.
Ganglion cysts often appear on the back of the wrist, but they can also form on the palm side, near the base of a finger, or around a finger joint. Their size can vary, sometimes becoming more noticeable after activity and smaller with rest.
