Can smoking cigarettes lead to swollen lymph nodes in my neck or behind my ear? I've noticed some swelling and I'm getting a bit concerned it might be linked to my smoking habit.

1. Smoking and Lymph Nodes:

   • Smoking is not a direct cause of swollen lymph nodes.
   • It can weaken the immune system, increasing infection risk.

2. Possible Causes:

   • Swollen lymph nodes often indicate infections like throat or ear infections.
   • Smoking can lead to respiratory infections, potentially causing lymph node swelling.

3. When to Seek Medical Advice:

   • If swelling persists over two weeks, grows, or is accompanied by symptoms like fever, consult a healthcare professional.

Summary: While smoking itself is unlikely to directly cause swollen lymph nodes, it can contribute to conditions that lead to swelling. Seek medical evaluation for persistent or painful swelling.