what are signs and symptoms of testicular cancer?
['A lump or enlargement in either testicle.', 'A feeling of heaviness in the scrotum.', 'A dull ache in the abdomen or groin.', 'A sudden collection of fluid in the scrotum.', 'Pain or discomfort in a testicle or the scrotum.', 'Enlargement or tenderness of the breasts.', 'Back pain.']