(HealthDay News) -- Swollen lymph nodes (glands) are commonly caused by an infection, an abscess, an inflammation or cancer. Lymph nodes are most noticeable in the groin, armpit, neck area, behind the ears, and back of the head.
The National Library of Medicine says you should call your doctor if:
- Glands remain swollen, red, or sore, or continue to swell for a few weeks.
- Glands are hard, an abnormal shape, or won't move.
- In a child, if the glands swell to about 1/2 inch or larger.
- You have sudden weight loss, fever, or night sweats.
