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    Groin lump

    Lump in the groin; Inguinal lymphadenopathy; Localized lymphadenopathy - groin; Bubo; Lymphadenopathy - groin

    A groin lump is swelling in the groin area. This is where the upper leg meets the lower abdomen.

    Considerations

    A groin lump may be firm or soft, tender, or not painful at all. Your health care provider should examine any groin lumps.

    Causes

    The most common cause of a groin lump is swollen lymph nodes. These may be caused by:

    Other causes include any of the following:

    • Allergic reaction
    • Medicine reaction
    • Benign (not cancerous) cyst
    • Hernia (a soft, large bulge in the groin on one or both sides)
    • Injury to the groin area
    • Lipomas (harmless fatty growths)

    Home Care

    Follow the treatment your provider prescribed.

    When to Contact a Medical Professional

    Small lymph nodes that can be felt in the groin are common, especially in men, and usually result from prior leg infection. Make an appointment to see your provider if you have an unexplained groin lump.

    What to Expect at Your Office Visit

    Your provider will examine you and may feel the lymph nodes in your groin area. A genital or pelvic exam may be done.

    You will be asked about your medical history and symptoms, such as when you first noticed the lump, whether it came on suddenly or slowly, or whether it gets larger when you cough or strain. You may also be asked about your sexual activities.

    Tests that may be done include:

    Open References

    References

    McGee S. Peripheral lymphadenopathy. In: McGee S, ed. Evidence-Based Physical Diagnosis. 5th ed. Philadelphia, PA: Elsevier; 2022:chap 27.

    Poulose BK, Carbonell AM, Rosen MJ. Hernias. In: Townsend CM, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 21st ed. Elsevier; 2022:chap 45.

    Winter JN. Approach to the patient with lymphadenopathy and splenomegaly. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 154.

      • Lymphatic system

        Lymphatic system - illustration

        The lymphatic system filters fluid from around cells. It is an important part of the immune system. When people refer to swollen glands in the neck, they are usually referring to swollen lymph nodes. Common areas where lymph nodes can be easily felt, especially if they are enlarged, are the groin, armpits (axilla), above the clavicle (supraclavicular), in the neck (cervical), and the back of the head just above hairline (occipital).

        Lymphatic system

        illustration

      • Swollen lymph nodes in the groin

        Swollen lymph nodes in the groin - illustration

        Lymph nodes play an important part in the body's defense against infection. Swelling might occur even if the infection is trivial or not apparent. Swelling of lymph nodes generally results from localized or systemic infection, abscess formation, or malignancy. Common areas where the lymph nodes can be felt include the groin area, armpit, the neck, under the jaw and chin, behind the ears, and below the occiput (prominence on the back of the head). As a rule, when swelling appears suddenly and is painful, it is usually caused by injury or an infection. Enlargement that comes on gradually and painlessly may result from malignancy or tumor.

        Swollen lymph nodes in the groin

        illustration

        • Lymphatic system

          Lymphatic system - illustration

          The lymphatic system filters fluid from around cells. It is an important part of the immune system. When people refer to swollen glands in the neck, they are usually referring to swollen lymph nodes. Common areas where lymph nodes can be easily felt, especially if they are enlarged, are the groin, armpits (axilla), above the clavicle (supraclavicular), in the neck (cervical), and the back of the head just above hairline (occipital).

          Lymphatic system

          illustration

        • Swollen lymph nodes in the groin

          Swollen lymph nodes in the groin - illustration

          Lymph nodes play an important part in the body's defense against infection. Swelling might occur even if the infection is trivial or not apparent. Swelling of lymph nodes generally results from localized or systemic infection, abscess formation, or malignancy. Common areas where the lymph nodes can be felt include the groin area, armpit, the neck, under the jaw and chin, behind the ears, and below the occiput (prominence on the back of the head). As a rule, when swelling appears suddenly and is painful, it is usually caused by injury or an infection. Enlargement that comes on gradually and painlessly may result from malignancy or tumor.

          Swollen lymph nodes in the groin

          illustration

        Review Date: 7/23/2024

        Reviewed By: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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