Q. What is the normal size of lymph nodes in the groin area?

Answered by
Dr. Saravan Pramod Settipalli
and medically reviewed by iCliniq medical review team.
Published on Nov 18, 2017 and last reviewed on: Jul 02, 2019

Hello doctor,

What measurement in a lymph node is looked at, to determine whether it is normal or not?

Dr. Saravan Pramod Settipalli

General Medicine Internal Medicine


Welcome to icliniq.com.

Lymph nodes are small, bean-shaped glands present throughout the body. The lymph system is an important part of the immune system, the body's defense system against diseases. Groups of lymph nodes can be felt in the neck (cervical), groin (inguinal), and underarms (axillary). Inflamed lymph nodes by themselves are generally not a major concern. They are considered significant in the following scenarios:

  1. If the swelling of the nodes lasts for more than two weeks.
  2. It is associated with symptoms such as weight loss, night sweats, fatigue, or fever.
  3. If the nodes are hard, fixed to the skin, do not move, or are growing rapidly.
  4. If you can feel the swelling close to your collarbone or in the lower part of the neck.
  5. If the overlying skin is red and inflamed and you suspect an infection.
  6. A palpable lymph node at the neck, even if it is small, is considered significant.

Generally, a lymph node of 1.5 to 2 cm size in the axillary and inguinal regions is considered normal.

For more information consult an internal medicine physician online --> https://icliniq.com./ask-a-doctor-online/internal-medicine-physician

Thank you doctor,

My ultrasound reports say that my groin lymph nodes are 37 by 6 by 9 mm and 29 by 4 by 7 mm. Are these normal? Which part of the measurement is the most important?

Dr. Saravan Pramod Settipalli

General Medicine Internal Medicine


Welcome to icliniq.com.

  • The location and number of lymph nodes will be considered primarily.
  • Regarding the size, as the lymph nodes are bean shaped, the maximum length, that is, 37 mm will be taken as the approximate size of the lymph node.
  • Inguinal lymph nodes of size up to 2 cm are considered normal.
  • I have already mentioned the other points regarding their significance.

For more information consult an internal medicine physician online --> https://icliniq.com./ask-a-doctor-online/internal-medicine-physician

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