How many lymph nodes do we have in our body?
Rachel Hickman
Published Mar 02, 2026
How many lymph nodes do we have in our body?
Humans have approximately 500–600 lymph nodes distributed throughout the body, with clusters found in the underarms, groin, neck, chest, and abdomen.
Where are the 4 main locations of lymph nodes in the body?
Lymph nodes are located throughout the body, including the neck, armpits, groin, around the gut, and between the lungs.
What are the 3 major lymph nodes?
There are three superficial regions on each side of the body where lymph nodes tend to cluster. These areas are the inguinal nodes in the groin, the axillary nodes in the armpit, and the cervical nodes in the neck.
What are the 6 lymph nodes?
Smith, MD. The level system for describing the location of lymph nodes in the neck consists of Level I, submental and submandibular group; Level II, upper jugular group; Level III, middle jugular group; Level IV, lower jugular group; Level V, posterior triangle group; and Level VI, anterior compartment (Figure 1).
Which is the largest lymph node in the body?
The spleen
The lymph nodes are found from the head to around the knee area. The spleen, which is located on the left side of the body just above the kidney, is the largest lymphatic organ, according to the U.S. National Library of Medicine (NLM).
How do I check my lymph nodes?
People can check whether their lymph nodes are swollen by gently pressing around the area, such as the side of the neck. Swollen lymph nodes will feel like soft, round bumps, and they may be the size of a pea or a grape. They might be tender to the touch, which indicates inflammation.
What is a level 7 lymph node?
Level VII lymph nodes are defined as lymph nodes in the anterior superior mediastinum and the tracheoesophageal grooves, extending from the suprasternal notch to the innominate artery [10].
Where does lymphoma usually start?
Most commonly, non-Hodgkin lymphoma starts in a lymph node at one or more places in the body. It can spread through the lymphatic system from one group of lymph nodes to another. It can also spread to other lymph tissue, particularly in the bone marrow and spleen, or to lymph nodes in the liver.
What diseases can affect the lymphatic system?
Lymphatic disease
- Lymphatic disease is a class of disorders which directly affect the components of the lymphatic system.
- Diseases and disorder.
- Hodgkin’s Disease/Hodgkin’s Lymphoma Hodgkin lymphoma This is a type of cancer of the lymphatic system.
- Non-Hodgkin’s Lymphoma.
- Lymphadenitis.
- Lymphangitis.
- Lymphedema.