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. Show
Review Date 7/25/2022Updated 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. Lymph node: Also sometimes referred to as lymph glands, lymph nodes are small rounded or bean-shaped masses of lymphatic tissue surrounded by a capsule of connective tissue. Lymph nodes are located in many places in the lymphatic system throughout the body. Lymph nodes filter the lymphatic fluid and store special cells that can trap cancer cells or bacteria that are traveling through the body in the lymph fluid. The lymph nodes are critical for the body's immune response and are principal sites where many immune reactions are initiated. During a physical examination, doctors often look for swollen lymph nodes in areas where lymph nodes are abundant, including the neck, around the collarbone, the armpit (axilla), and the groin. Image Source: MedicineNet, Inc. Text: MedicineNet, Inc. You have 10 lymph nodes in each groin area. They are part of your body’s natural defense against disease. Swollen lymph nodes are typically a sign of an infection. But it’s important to see your healthcare provider to know for sure.
OverviewWhat are lymph nodes?Lymph nodes are small, rounded structures (glands) that are part of your immune system. They are fleshy and they filter the lymph, a fluid with a special type of white blood cell that helps the body fight infection. Lymph nodes are in clusters throughout the body, including:
What are the inguinal lymph nodes?These lymph nodes are deep within the groin. There are 10 inguinal nodes near the upper thigh in each leg. What does it mean to have swollen lymph nodes (lymphadenopathy)?Under normal circumstances, you might not notice your lymph nodes. When they try to rid the body of harmful substances, extra cell activity causes them to enlarge. The area beneath your skin becomes puffy and may be sensitive to touch. How do swollen inguinal lymph nodes affect my body?Swollen lymph nodes often mean your body is fighting an infection like an ingrown nail, an insect bite or a dog bite. But they can also signal other conditions affecting the lower body. Symptoms and CausesWhat causes swollen lymph nodes in the groin?Swelling in the inguinal lymph nodes may be due to:
What other conditions cause swollen inguinal lymph nodes?Less common causes include: Autoimmune disorders
Inflammation
Cancer
Medications
Diagnosis and TestsHow are swollen lymph nodes in the groin diagnosed?Healthcare providers will take a medical history and perform a thorough physical exam that considers all possible causes. It includes: Taking a medical history by asking about:
Conducting a physical exam, which includes:
Will I need any tests?Healthcare providers may recommend:
Management and TreatmentHow are swollen lymph nodes in the groin treated?Treatments depend on the cause:
PreventionHow can I prevent swollen lymph nodes in the groin?Steps you can take include:
Outlook / PrognosisHow long will it take for the swelling to go down?It depends. If your treatment includes medications like antibiotics or antivirals, swelling should go down within a few days, but it can take a few weeks. Can swollen inguinal lymph nodes affect my future health?People with swelling due to infection typically make a full recovery. The condition does not affect your long-term health. Living WithWhat if treatment is not successful?If the swelling does not go away after taking medications, follow up with your healthcare provider. They may recommend more tests, treatments or a biopsy. What if it’s cancer?The chances of swollen inguinal lymph nodes being cancer are low, and there are typically other symptoms with cancer. If you have concerns, talk with your healthcare provider. What are some signs it might be cancer? Issues that may signal the need for tests to check for cancer include lymph nodes that:
A note from Cleveland Clinic If you detect swelling in the inguinal lymph nodes, see your healthcare provider. Treatment often includes medications. And symptoms usually go away in a few days. Remember, there can be many causes for swollen lymph nodes. They are often due to an infection and rarely a sign of cancer. Share Facebook Twitter LinkedIn Email Print Last reviewed by a Cleveland Clinic medical professional on 08/10/2021. References
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When should I worry about swollen lymph nodes in groin?Any lump in your groin should be evaluated by a doctor. See your doctor if: the swelling appeared for no obvious reason, such as a skin infection or injury. the swelling is present for more than two weeks or continue to enlarge.
What do groin lymph nodes feel like?You normally won't notice your inguinal lymph nodes. They can be hard to feel unless they're swollen. When they're busy fighting an infection, they may become enlarged and sensitive to the touch.
How do you treat swollen lymph nodes in the groin?Apply a warm, wet compress, such as a washcloth dipped in hot water and wrung out, to the affected area. Take an over-the-counter pain reliever. These include aspirin, ibuprofen (Advil, Motrin, others), naproxen (Aleve) or acetaminophen (Tylenol, others).
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