Discovering swollen lymph nodes in your armpit can be concerning, especially when you're unsure whether they might indicate something serious like cancer. Understanding what these swollen nodes look like, their common causes, and when they warrant medical attention is crucial for your health awareness.
This comprehensive guide will help you identify swollen lymph nodes in the armpit, understand their various causes, and recognize when they might be a sign of cancer versus other more common conditions.
Visual Characteristics of Swollen Armpit Lymph Nodes
Swollen lymph nodes in the armpit (axillary lymph nodes) typically appear as soft, round bumps under the skin. They may range from the size of a pea to a grape when enlarged. The affected area might look slightly raised or feel tender to the touch.
Common visual indicators include:
- Visible lumps or bumps under the armpit skin
- Skin redness in the surrounding area
- Possible swelling extending into the upper arm
- Changes in the texture or appearance of the skin above the node
Common Non-Cancerous Causes
Most cases of swollen lymph nodes in the armpit are not cancer-related. Common benign causes include:
- Upper respiratory infections
- Skin infections or cellulitis
- Recent vaccinations
- Viral infections like mono or HIV
- Bacterial infections
- Autoimmune conditions
Distinguishing Cancerous vs. Non-Cancerous Nodes
Physical Characteristics
Cancerous lymph nodes often have distinct characteristics:
- Feel hard or firm rather than soft and moveable
- Are usually painless (unlike infection-related swelling)
- May be fixed in place rather than mobile
- Often gradually increase in size
- Can occur without any obvious infection or illness
Associated Symptoms
Watch for these additional warning signs that might indicate cancer:
- Unexplained weight loss
- Night sweats
- Persistent fatigue
- Fever without apparent cause
- Swelling that doesn't resolve within 2-4 weeks
When to Seek Medical Attention
Consult a healthcare provider if you experience:
- Lymph nodes that continue growing or remain swollen for more than 2-4 weeks
- Hard, immovable nodes
- Nodes accompanied by unexplained symptoms like fever or weight loss
- Swelling that appears suddenly and grows rapidly
- Multiple swollen areas throughout your body
Frequently Asked Questions
What do swollen lymph nodes in the armpit look like and how can I tell if they might be cancerous? Swollen lymph nodes typically appear as soft, moveable lumps under the skin. Potentially cancerous nodes are usually harder, fixed in place, and painless, while infection-related swelling tends to be tender and mobile.
What are the common causes of swollen lymph nodes in the armpit besides cancer? Common non-cancerous causes include infections (viral or bacterial), recent vaccinations, skin infections, autoimmune conditions, and upper respiratory infections.
When should I see a doctor about swollen lymph nodes in my armpit? Seek medical attention if nodes remain swollen for more than 2-4 weeks, feel hard and immovable, are accompanied by unexplained symptoms like fever or weight loss, or if the swelling appears suddenly and grows rapidly.
How do cancerous lymph nodes in the armpit differ in feel and symptoms from those caused by infections? Cancerous nodes typically feel hard, are painless, and fixed in position, while infection-related nodes are usually soft, tender, and moveable. Cancerous nodes often persist and gradually enlarge, while infection-related swelling typically resolves within weeks.
Can swollen lymph nodes in the armpit be a sign of breast cancer or lymphoma? Yes, swollen armpit lymph nodes can be an early sign of breast cancer or lymphoma. This is particularly concerning if the swelling is painless, persistent, and accompanied by other symptoms like unexplained weight loss or night sweats.
