Lymph node enlargement – what you need to know

In this article:

• What can cause lymph node enlargement?
• How to detect and feel swollen lymph dodes?
• When should you see a doctor?
• Helpful tips for parents

In this article, Dr. Tibor Kovács, an experienced pediatrician, will introduce the basic characteristics of lymph nodes, explain how to detect and feel them, and provide useful advice on when to seek medical attention.

What should you know about lymph nodes?

Lymph nodes, along with the lymphatic system, form a network throughout the body. They act as filters for lymph fluid, helping to remove harmful substances and pathogens. In a healthy state, lymph nodes are usually not palpable, but when the body is fighting an infection, they can swell as part of the immune response.

What can cause lymph node enlargement?

Lymph nodes swell when immune cells multiply in response to inflammation in a particular area. This is why nearby lymph nodes often become enlarged and firm during an infection.

Parents may notice this when their older child complains of a painful lump near the lips, throat, or ears during an infection.
While certain lymphatic or blood disorders require serious attention and treatment, in most cases, swollen lymph nodes are simply a normal physiological response to an infection and should not

How to detect and feel swollen lymph dodes?

Lymph nodes are primarily located in the neck, armpits, and groin area. These regions are easily accessible for parents during daily hygiene routines or dressing their child. When parents first notice a swollen lymph node, it can cause concern, often leading them to visit a doctor the next day.

A normal lymph node is small, movable, and does not clump together with surrounding lymph nodes. If there are no other warning signs, such as persistent fatigue, recurring fever, night sweats, or unexplained bruising, there is no need to worry. The presence of a swollen lymph node simply indicates that the body is responding to a localized infection or inflammation.

The texture of lymph nodes can change over time. When an infection is active, they may feel firm and hard. As the illness resolves and the immune system regains control, the lymph nodes soften and shrink. However, they may not always return to their original size.

When should you see a doctor?

Although swollen lymph nodes are usually harmless and resolve on their own, in certain cases, they may require medical attention:

• If the swelling persists for several weeks
• If the lymph nodes feel hard, do not move, and continue to grow
• If symptoms such as fever, weight loss, night sweats, or other unusual signs accompany the swelling

Helpful tips for parents

• Pay attention to any changes in your child’s body, especially if they have a fever or other signs of illness.
• Encourage regular handwashing and proper hygiene to help prevent infections.
• Teach your child the importance of a healthy diet and adequate rest, both of which contribute to a strong immune system.
• Regularly check lymph nodes as a simple but essential part of monitoring your child’s health.
• If you have any doubts or concerns, consult a healthcare professional who can properly assess and address the situation.