Medically the evaluation by Cynthia Taylor Chavoustie, MPAS, PA-C — written by Jennifer Berry ~ above April 2, 2020

Lymph nodes are little glands in various areas in the body, consisting of the head, neck, armpits, and groin.

Lymph nodes are a an essential part the the body immune system. They catch viruses, bacteria, and other invading microbes. Then, certain white blood cells within the lymph nodes ruin these invaders.

You are watching: Causes of enlarged lymph nodes in groin

The lymph nodes in the groin are likewise called femoral or inguinal lymph nodes.

Most of the time, world cannot watch or feel their lymph nodes. However, if the nodes swell, they may be tender and also painful. As soon as this occurs, that is generally a authorize that the human body is fighting condition or inflammation.

Swollen lymph nodes in the groin may show an infection or inflammation near those particular lymph nodes.

In this article, learn about the possible causes of swollen lymph nodes in the groin, and also when to view a doctor.


Share on PinterestCellulitis, jock itch, and foot injuries may reason swollen lymph nodes in the groin.
Cellulitis is a type of infection that invades the deep great of skin. Over there are more than 14 million cases of cellulitis in the United says each year.

The American Academy of skin science say the the lower leg or foot is a typical site for cellulitis in adults. If the infection occurs in this area, the may reason swelling the the lymph nodes in the groin.

Any rest in the skin can reason cellulitis, i beg your pardon may produce the following symptoms near the site of the injury:


Cellulitis can end up being severe there is no treatment. Human being who have actually symptoms of cellulitis need to seek clinical attention.

Sexually transmitted infections

A human can obtain a sexually transmitted epidemic (STI) if they have actually sexual call with someone else through an infection. STIs, such together gonorrhea, syphilis, genital herpes, and also HIV, can cause swollen lymph nodes in the groin.

Symptoms of STIs have the right to vary widely but may include:

pain, swelling, or itching in the genital areaunusual discharge indigenous the penis or vaginaintermenstrual bleedingfever, headaches, or fatigue

Many STIs have actually no symptom at all, so human being should get continuous testing.

Jock itch

Jock itch is a fungal infection that often affects the groin, buttocks, and also inner thighs. Along with lymph node swelling in the groin, that can cause severe itching and also a ring shame rash.

Jock itch is a symptom of a ringworm infection. Over-the-counter antifungal creams or powders the treat ringworm often clear that up.

If the decision does not go away through antifungal treatment, that is best to see a doctor.

Vaginal or penile yeast infections

An overgrowth of a fungus dubbed Candida can reason an infection in the vagina or top top the penis.

As with other fungal infections in the genital area, this can affect the lymph nodes in the groin. Various other symptoms the a yeast epidemic include:

burning during urinationitching and also irritated skinfoul-smelling lumpy white dischargeredness and also bumps that might contain pus

Vaginal or penile yeast infections regularly respond well to antifungal medicines. World should check out a doctor for a diagnosis before treating a yeast infection at residence if it is the first time they have actually experienced one.

Cat scrape disease

Cat scrape disease, also called cat scrape fever, is a bacter infection. A person can get it if an infected cat scratches them and also breaks the skin.

Cat scratch condition can likewise develop if one infected cat licks an open up wound top top a who body.

If this infection occurs top top the feet or legs, the may reason swollen lymph nodes in the groin.

Other symptoms of cat scratch disease include:

swelling, pain, or redness close to the scrape or woundround, elevated sores containing pusfeverfatiguelack of appetite

Infected cats generally show no indicators of illness. Cat scratch an illness often goes away with time in human being who have a healthy immune system.

It can lead to major complications in some people, but this is rare.

Urinary street infections

Bacteria can cause urinary street infections (UTIs) and bladder infections, top the lymph nodes in that area to swell. Some various other symptoms include:

frequent urge to urinatepainful urinationburning or stinging feeling in the areapassing tiny urine

These infections may sometimes call for antibiotics. UTIs can lead to much more severe infections if a human does not receive treatment.

Foot injuries

If a human being gets a cut or blister on your foot, bacteria may enter through the skin and also cause one infection. This infection can, in turn, reason swelling in the lymph nodes in the groin.

People who have actually diabetes or neuropathy may be an especially at threat of obtaining a foot injury there is no being conscious of it. Castle should examine their feet day-to-day for indicators of one injury and avoid walk barefoot outdoors.

Athlete’s foot

Athlete’s foot, additionally known as tinea pedis, is a fungal infection that influence the feet.

People may obtain the epidemic from wade barefoot in moist publicly areas, such as swimming pools and locker rooms.

As the body is fighting the fungus, that may reason swollen lymph nodes in the groin. However, athlete’s foot is not a common cause of this symptom, so a human being with puffy lymph nodes in the groin should take into consideration other causes before assuming the athlete’s foot is responsible.

Common symptom of athlete’s foot include:

itching and also burning in between the toesscaling or peeling of the skin ~ above the feet, especially between the toesswelling the the feet or toescracked skin or blisters top top the feet or toes
Certain cancers

In rarely cases, swollen lymph nodes in the groin have the right to be a sign of certain varieties of cancer that impact the area.

The species of cancer may include:

uterine cancer

These cancers may have actually very couple of symptoms at first. If a human notices puffy lymph nodes in their groin without an obvious cause, they should see a doctor for an evaluation.

Why perform lymph nodes swell? 

When one infection, inflammation, injury, or other illness affects the body, lymph nodes may swell together they conference the harmful cells and filter them.

A person may have the ability to feel puffy lymph nodes by gently pressing on the area. They may be tender or painful.

A swollen lymph node in one area have the right to signal the there is inflammation or an infection in that specific area of the body. Physicians refer come this as localized lymphadenopathy.

For instance, puffy lymph nodes in the neck can be a symptom that a cold or the flu. Swollen lymph nodes in the groin room usually a authorize that there is an infection or inflammation in the genitals or lower body, such together the legs or maybe the feet.

When an ext than one area of lymph nodes swell, this is referred to as generalized lymphadenopathy. It may mean the the person has a body-wide infection, impaired drainage, or one immune system disorder.

Examples include:

rheumatoid arthritismononucleosis (mono)HIV
When to watch a doctor

People must see a doctor if they have persistently puffy lymph nodes that execute not lessen end the food of a few days, or if the lymph nodes space painful or bring about discomfort.

Treatment for swollen lymph nodes counts on the cause. For instance, cellulitis or skin infections usually require antibiotics.

Jock itch or athlete’s foot may clear up with antifungal medicines. If over there is no clear reason of one infection, a doctor might run exam for other conditions.

After treating the underlying cause, the swollen lymph nodes will go earlier to their typical size.


Swollen lymph nodes space not a disease. They are a authorize that the body is fighting turn off an infection.

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In most cases, it is ideal to check out a physician to determine the reason of swollen lymph nodes in the groin. The doctor can recommend the necessary treatment or order further experimentation to help them check a diagnosis.

critical medically the evaluation on April 2, 2020


Medically reviewed by Cynthia Taylor Chavoustie, MPAS, PA-C — created by Jennifer Berry top top April 2, 2020

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