Medically reviewed by Alana Biggers, M.D., MPH — written by Adrienne Santos-Longhurst top top April 12, 2019

Lymph nodes aid your human body fight off infections. These tiny glands occupational as filters and also trap bacteria, viruses, and other causes of illness to prevent them from infecting various other parts of your body.

Lymph nodes typically measure less than ½ inch across, i beg your pardon is roughly the size of a pea. Castle can prosper significantly, sometimes obtaining as big as a tennis ball.

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Lymph nodes in the groin are additionally called inguinal lymph nodes. Puffy nodes in the groin deserve to be caused by an injury or skin infection, such as athlete’s foot. Sexuallytransfer infections (STIs) and also cancer can additionally cause swollen lymph nodes in the groin.


More frequently than not, puffy inguinal lymph nodes are resulted in by epidemic or injury affecting the reduced body. This can include the:

groingenitalsurinary tractlegfoot

Examples of these include:

In rarely cases, swollen lymph nodes in the groin can be because of cancer. Cancer in the back, pelvis, and lower extremities deserve to spread come the inguinal lymph nodes. Few of these species of cancer include:

Swollen lymph nodes can also be led to by various other cancers, such together lymphoma and leukemia. These varieties of cancers are more likely to reason multiple locations of nodes come swell.

Immunodeficiency disorders and also infections, such together mononucleosis and also chickenpox can also cause it.

More about lymph nodes

Normal lymph nodes are small, painless, and move under the skin once pushed.

Most that the time, lymph nodes will certainly swell in one area, close come the website of the injury or infection. When much more than one area of nodes swells, it’s referred to as generalized lymphadenopathy.

Certain infections and also cancers are more likely to cause multiple areas of lymph nodes come swell, consisting of lymphoma, leukemia, and also HIV. Measles, conditions that affect the immune system, and certain medications can additionally cause generalized lymphadenopathy.

Other symptoms

According come Cleveland Clinic, a lymph node bigger than 0.4 inches, or 1 centimeter, in diameter is considered abnormal.

Swollen lymph nodes in the groin may be painful come the touch and also the skin end them might look red and also inflamed, relying on the cause.

If your swollen nodes are due to a reduced body epidemic or injury, your other symptoms may include:

Other symptom are much more common as soon as swollen lymph nodes are caused by cancer. This include:

lymph nodes that room swollen for more than 2 weekspersistent fevernodes that room hard and also fixed or immovablenodes the are farming quicklygeneralized lymphadenopathy

To diagnose the cause of swollen lymph nodes in the groin, your physician will start with your medical and sexual history. They’ll ask about your symptoms, including just how long her lymph nodes have actually been swollen.

Since particular medications can reason lymphadenopathy, the physician will likewise want to understand what drugs you space taking.

Your medical professional may also need come do added testing, which may include:

Pap test. A Pap check checks the cervix for abnormal cells and cervical cancer. An HPV test might be performed as well. HPV has actually been attached to cancer of the:vulvavaginacervixanus

Swollen lymph nodes in the groin room a symptom, not a condition. Treatment counts on what’s bring about your nodes to swell.

If an epidemic is the cause, treatment relies on the form of infection and also may encompass a object treatment, oral treatment, or a combination of both.

Treatments include:

topical antibiotics for a skin infectionOTC antifungal cream because that athlete’s foot or jock itch

If cancer is resulting in your puffy lymph nodes, treatment counts on the type of cancer, the stage, and also your age and overall health. Options may include:

immunotherapytargeted therapystem cell transplantsurgery
When to see a doctor

Swollen lymph nodes usually return to normal as soon as the underlying condition gets better. For instance, if you have a minor skin infection, such together athlete’s foot, your lymph nodes have to go ago to their typical size once you’ve treated the infection.

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Any lump in her groin need to be evaluated by a doctor. Check out your medical professional if:

the swelling showed up for no obvious reason, such together a skin epidemic or injurythe swelling is existing for much more than two weeks or proceed to enlargeyour lymph nodes feel tough or don’t relocate when you press on themthe swelling is accompanied by persistent fever, unusual weight loss, or night sweatsyou’ve to be exposed to an STI
The bottom line

Most puffy lymph nodes in the groin are caused by a lower body infection or injury, yet it can be something more serious. Talk through your doctor, specifically if you have other symptoms.

last medically the review on April 12, 2019


Medically the evaluation by Alana Biggers, M.D., MPH — created by Adrienne Santos-Longhurst on April 12, 2019

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