What is a finger lump?

A finger lump is a protuberance or localized area of swelling that can occur anywhere on your finger. Other terms used to describe the various types of finger lumps include bump, nodule, contusion, tumor and cyst. Finger lumps can be caused by any number of conditions, including infections, inflammation, tumors or trauma. Depending on the cause, you might have single or multiple finger lumps that are soft or firm, painful or painless. They may grow rapidly or may not change in size.

If your finger lump forms due to local inflammation of the finger joint, it may appear as a knot or lump at the area of the joint. Finger lumps commonly occur at the joint area and are indicative of osteoarthritis and other arthritis-related conditions. Traumatic causes of finger lumps range from bug bites to severe injuries.

Both benign and malignant tumors of the skin, soft tissues, or bone can appear as a finger lump. In these cases, either a biopsy or surgical removal of the finger lump can determine whether cancer is present. Cysts, which are fluid-filled, sac-like structures, can form on the finger and may appear like a lump. Some cysts may be present at birth, while others develop as a result of inflammation, tumors, or wear-and-tear on your body over time. Conditions that produce inflammation throughout the body, such as rheumatoid arthritis, a chronic autoimmune disease characterized by joint inflammation, may be associated with finger lumps.

Finger lumps caused by infection, inflammation or trauma are usually temporary and subside as the underlying condition resolves. Finger lumps that persist or continue to grow over time may signal more serious conditions, such as tumors.

If you have any finger lump that is persistent or causes you concern, seek prompt medical care.

SYMPTOMS

What other symptoms might occur with a finger lump?

A finger lump may be accompanied by other symptoms, depending on the underlying disease, disorder or condition. Certain conditions that cause finger lumps may also involve other body systems.

Related localized symptoms that may occur along with a finger lump

A finger lump may be accompanied by other localized symptoms including:

CAUSES

What causes a finger lump?

Finger lumps have many possible causes, including trauma, infections, inflammatory diseases, benign cysts and tumors, and cancers.

Traumatic causes of finger lumps

Minor and severe injuries, as well as internal trauma, can result in a localized swelling or finger lump including:

Medical Reviewer: Cynthia Haines, MD Last Annual Review Date: Aug 2, 2013 Copyright: © Copyright 2014 Health Grades, Inc. All rights reserved. May not be reproduced or reprinted without permission from Health Grades, Inc. Use of this information is governed by the HealthGrades User Agreement.

This Article is Filed Under: Infections and Contagious Diseases


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