Evaluation and treatment of enlarged lymph nodes
Lymph nodes swell as part of the body's normal response to infection, and most enlarged nodes settle once the infection passes.
Nodes that persist beyond a few weeks, grow, or appear without any obvious infection deserve proper evaluation.
If a swollen node persists beyond three to four weeks, continues to enlarge, is hard or fixed rather than soft and movable, appears without any infection to explain it, or comes with unexplained weight loss, night sweats or persistent fever. A tender node that appears with a sore throat and settles within a couple of weeks is almost always a normal response to infection. It is persistence and the absence of an explanation that matter.
Understanding the Condition
Lymph nodes are small glands throughout the body that filter lymph fluid and house immune cells. They are part of how the body fights infection.
When they encounter infection they enlarge — which is why nodes in the neck swell with a throat infection, and nodes in the groin swell with a foot infection. This is normal and settles as the infection clears.
Persistent enlargement, particularly without an obvious infection, needs evaluating. The characteristics of the node and how long it has been present guide the assessment.
How a node feels is informative. Soft, tender, movable nodes appearing with an infection usually reflect a normal immune response. Hard, painless, fixed nodes that persist need investigating.
Warning Signs
Have swollen nodes assessed if you notice the following.
Persistent hard, painless, fixed lymph nodes — particularly with fever, night sweats or weight loss — should be evaluated promptly. Most turn out to have a treatable explanation, but establishing which is important.
Causes & Risk Factors
Enlarged nodes have many possible causes.
Treatment
Treatment follows the cause. Establishing that cause is the whole purpose of the assessment.
Where a node is removed or sampled, tissue is sent for histopathology to establish the diagnosis definitively.
What to Expect
Examination of the node and surrounding areas, with a full history of how long it has been present.
Blood tests and ultrasound to assess the node and look for a source of infection.
A needle or excision biopsy where the cause remains unclear.
Directed at whatever the evaluation establishes, with onward referral where that is appropriate.
Your Surgeon
Dr. Kamalakkhannan is an experienced general, laparoscopic and laser surgeon with over 15 years of expertise across a wide range of surgical conditions.
Most enlarged nodes have a benign explanation. The task is establishing which, and not leaving a persistent node unexplained.
Why Patients Choose Lapser
Extensive experience across general, laparoscopic and laser surgical procedures.
Examination and, where needed, imaging come before any talk of treatment.
Many of these conditions need monitoring rather than surgery, and you will be told so plainly.
Recommendations based on your findings, symptoms and individual circumstances.
Where an incision is needed, techniques aim for the least visible result possible.
Consultations every day, including evenings, at Sithalapakkam and Velachery.
Book a consultation if you have any of the following.
Early evaluation helps identify the most appropriate treatment and often provides reassurance.
Frequently Asked
If swelling persists beyond three to four weeks, the node is hard or fixed, it continues to grow, or it appears alongside unexplained fever, night sweats or weight loss.
Usually not. Most reflect a normal response to infection. Persistent or unexplained enlargement is what needs evaluating.
Nodes that swell with an infection typically settle within two to four weeks as the infection clears.
This depends on the findings. Assessment may include blood tests, an ultrasound and, where the cause remains unclear, a biopsy.
A needle biopsy is quick and performed with local anaesthesia. An excision biopsy is a minor procedure, also usually under local anaesthesia.
No. Infection is the commonest cause but not the only one, which is why persistent nodes are investigated rather than assumed.
If you have a swollen node that has not settled, evaluation will establish the cause. Most have a straightforward explanation.
The information on this page is for general awareness and is not a substitute for professional medical advice, diagnosis or treatment. Lumps, swellings and infections can only be characterised through clinical examination and, where appropriate, imaging or histopathology. Spreading infection, high fever or rapidly worsening symptoms require urgent medical attention. Recovery times and outcomes vary from person to person.
