Common Causes of Lumps
1. Swollen Lymph Nodes
One of the most common reasons for lumps in these areas is swollen lymph nodes. Lymph nodes are part of your immune system and can swell when your body is fighting:
A cold or flu
An ear or throat infection
A skin infection or inflammation
These lumps are usually soft or slightly firm, may feel tender, and often shrink once the infection clears.
2. Cysts
Cysts are fluid- or material-filled sacs that can form under the skin. They are generally harmless and slow-growing. Common types include:
Sebaceous cysts
Epidermoid cysts
They are usually painless and movable under the skin.
3. Muscle Knots or Tension
Lumps on the back or neck may actually be tight muscle knots caused by:
Poor posture
Stress
Carrying heavy bags
Long hours on phones or computers
These can feel firm and may be sore to the touch.
4. Skin Conditions
Ingrown hairs, acne, or minor skin infections can create small lumps, especially behind the ear or along the hairline. These usually improve on their own with good hygiene.
When Should You Pay Closer Attention?
While most lumps are harmless, it’s important to be aware of changes. You should tell a trusted adult or seek medical advice if a lump:
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