If its like a bubble on your arm you were probably bit by a gnat or mosquito. If your whole arm is swollen you could have an allergic reaction or a bee or wasp stung you so you should see a doctor
A tetanus vaccine injection can cause swelling of the arm. If it doesn't get better in a day, talk to the doctor.
This depends on many factors. The swelling is due to the tissue of the arm being damaged. It is possible to break the arm and not do enough damage to the muscles and skin to have any swelling, but it isn't likely. The length of time is also variable and could be anything from a day to several days.
Right arm swelling and numbness can mean a great variety of things. This can signify a pretty bad neurological problem.
See a Dr. Could be a sprain or strain. Make sure to ice it to reduce swelling.
severe pain and swelling.
Ice
swelling ,pain,anddifficulty moving fingers
You would for sure on the lower arm to keep the arm raised to minimize swelling and pain. It will have no affect for the upper arm (above the elbow).
sometimes swelling constant hurting or throbbing and hard to do serious work with the arm mentioned
If your arm is bruised and swollen after a fall, first rest the arm and avoid using it to prevent further injury. Apply ice wrapped in a cloth for 15-20 minutes every hour to reduce swelling and pain. Elevate the arm above heart level to help decrease swelling. If the pain persists or if there is severe swelling, deformity, or inability to move the arm, seek medical attention to rule out fractures or more serious injuries.
Swelling at the location of vaccination is completely normal and nothing to worry about. The swelling should go away in about a day. If, however, the swelling increases, and you experience fever or difficulty breathing, you should contact your doctor, since this could indicate an allergic reaction to a component of the vaccine. Vaccination is a procedure given to develop immunity. Vaccination can be active or passive; attenuated or subunits. When vaccine is give it elicits immune response which is observed as swelling.
The most likely cancer that would present as a mass in the arm pit is breast cancer. This is due to lymph node swelling, as a result of breast cancer that has metastasized to lymph nodes in the "tail" of the breast tissue in and near the arm pit.However, before becoming overly concerned about a swelling in the arm pit, check with your physician first. There are many more benign causes than malignant causes.