There could many reasons for the lump in your arm, it could be due to injury, overexertion, sudden collision of your hand with some hard thing, over extension etc. It is recommended to consult a good doctor who can examine you better and guide you.
Primarily caused by overexertion. However, studies show that trauma such as direct blows to the epicondyle, a sudden forceful pull, or forceful extension causes more than half of these injuries
eAnswers Team
There could many reasons for the lump in your arm, it could be due to injury, overexertion, sudden collision of your hand with some hard thing, over extension etc. It is recommended to consult a good doctor who can examine you better and guide you.
H.P.Dubey
Primarily caused by overexertion. However, studies show that trauma such as direct blows to the epicondyle, a sudden forceful pull, or forceful extension causes more than half of these injuries