Swollen lymph nodes in the neck can be alarming, especially when they appear suddenly or feel tender to the touch. These small, bean-shaped glands are part of the body's lymphatic system, which helps fight infection and maintain fluid balance. When lymph nodes swell, it usually means that your body is responding to an infection, inflammation, or, in some cases, a more serious condition.
For same-day illness testing and treatment, visit the walk-in clinic at AFC Urgent Care Clark. Our center is conveniently located at 77 Central Avenue, Unit 5 in Clark, NJ. No appointments are required—just walk-in or plan your visit in advance below!
Swollen Lymph Nodes Caused By Infections
One of the most common causes of swollen lymph nodes in the neck is infection. When harmful bacteria, viruses, or other pathogens enter the body, the immune system activates the lymph nodes to help fight off these invaders. This immune response often causes the nodes to enlarge. Common infections that trigger this reaction include:
- Viral Infections: Conditions like the common cold, influenza, or infectious mononucleosis (caused by the Epstein-Barr virus) often lead to swollen lymph nodes. These viruses cause inflammation in the throat and respiratory tract, prompting nearby lymph nodes to respond.
- Bacterial Infections: Bacterial infections such as strep throat or tonsillitis can also cause swelling in the cervical lymph nodes. In these cases, the nodes may become tender and painful as they work to filter and trap the bacteria.
- Localized Infections: Sometimes, infections in nearby areas like the ears, teeth (such as an abscess), or skin can lead to swollen neck lymph nodes. These localized infections signal the nearest nodes to swell as they work to contain the spread of harmful agents.
Noninfectious Causes of Swollen Lymph Nodes
While infections are the most common cause of swollen lymph nodes, several noninfectious conditions can also lead to this symptom. These causes are often related to chronic inflammation, immune system disorders, or even serious underlying health issues. Understanding these noninfectious triggers is essential, especially when swelling persists or is not accompanied by signs of infection.
- Autoimmune Diseases: Conditions like lupus and rheumatoid arthritis can cause the lymph nodes to swell as the immune system mistakenly attacks the body's tissues. This chronic immune activity leads to ongoing inflammation, which can affect the lymphatic system.
- Cancers and Lymphomas: Swollen lymph nodes in the neck can sometimes be a sign of cancers, including lymphomas, leukemia, or metastasized cancers from other areas like the head, neck, or chest. These swellings are often painless, firm, and persistent.
- Medication Reactions: Certain medications, such as some antiseizure drugs or antibiotics, can trigger a reaction in the body that leads to lymph node enlargement. This is typically part of a hypersensitivity or drug-induced lupus-like syndrome, where the immune system becomes overactive in response to the medication.
Get Walk-In Testing & Treatment at AFC Urgent Care Clark
Swollen lymph nodes in the neck are often a natural response to infection or inflammation and usually resolve on their own. However, if the swelling persists for more than two weeks, continues to grow, or becomes hard and immovable, it may be a sign of a more serious condition. In such cases, it's essential to visit urgent care or consult a healthcare provider promptly. Early evaluation can help identify the root cause and ensure timely treatment, especially if the swelling is related to an underlying disease that requires medical attention.
At AFC Urgent Care Clark, our team of healthcare providers can provide the best treatment and recommendations for care—every day of the week! We accept most major health insurances and offer cost-effective care for self-paying patients. For more information about the services we provide, please call us directly at (732) 301-5114.
