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I have reviewed your query and here is my advice.
The most common cause of groin pain is a muscle, tendon or ligament strain, particularly in athletes who play sports such as hockey, soccer and football. Groin pain might occur immediately after an injury
, or pain might come on gradually over a period of weeks or even months. Groin pain might be worsened by continued use of the injured area.
A few cause I'm mentioned here:
4. Inguinal hernias
7. Scrotal mass etc.
Until examination is done it is difficult to say what it is.
please consult your physician he will examine and treat you accordingly.
Hope I have answered your query.
Let me know if I can assist you further.