Packing for a trip to Walt Disney World in December or January means being prepared for anything. Check the extended forecast before you leave. Bring along a sweatshirt or light jacket, and dress in layers that you can remove as the temperature warms up through the day.
Injury of a Muscle or Tendon. A damaged tendon or muscle can be the main culprit behind the swollen bump on the back of the neck. Muscles and tendons keep the body in shape and when one is injured or pulled, the muscle moves from its original position. The damaged part of the muscle sticks out, which forms the lump.
Lump in the Neck: Not all thyroid nodules are big enough to cause a noticeable lump. Some people, though, may notice a lump in the front of their neck. You may be able to see it, or perhaps you can't see it but you can feel it. Other people may notice a lump in your neck when you swallow.