Lymph Node - Normal

Definition

• Lymph nodes are small bean-shaped lumps found under the skin
• Also called lymph glands
• They help the body fight infections

Call or Return If

• A lymph node starts to look infected
• A lymph node becomes 1 inch (2.5 cm) or larger in size
• You have other questions or concerns

About This Topic

Symptoms

• Normal lymph nodes are found in the neck, armpit and groin.
• Usually they are the same size on both side of the body.
• The easiest one to feel is the one that drains the tonsils. It's in the neck just under the angle of the jaw.
• Normal nodes are usually less than ½ inch (12 mm) across. This is the size of a pea or baked bean. They also feel soft and are easy to move.
• Swollen nodes with a viral infection are usually ½ to 1 inch (12 -25 mm) across.
• Swollen nodes with a bacterial infection are usually over 1 inch (25 mm) across. This is about the size of a quarter.

Cause

• Over 100 normal lymph nodes are located on the surface of the body. Over 400 others are inside the chest, abdomen and deep tissues. They are all connected by lymph channels.
• Normal nodes can usually be felt in the neck and groin crease.
• They are on guard to fight infections. They also can react to any skin irritation (such as an insect bite).

Common Objects Used to Guess the Size

• Pea or pencil eraser- 1/4 inch or 6 mm
• Dime- 3/4 inch or 1.8 cm
• Quarter- 1 inch or 2.4 cm
• Golf ball- 1 1/2 inches or 3.6 cm
• Tennis Ball- 2 1/2 inches or 6 cm

After Care Advice