Hello and welcome to healthcaremagic. I have read your question and i can understand your concerns. From the information you provided it seems that you have developed a groin hernia. If i were your treating physician i would have seen that lump and would have asked you to cough.during coughing itra abdominal pressure rises and hernia becomes prominent. I would have palpated your pubic tubercle and seen its relationship with the lump.inguinal hernia are above the tubercle and femoral hernia are below the tubercle. In case of inguinal hernia i would have done ring occlusion test to assertain whether it is indirect or direct inguinal hernia. Hernia will need sugical fixation ie hernioplasty or herniorraphy. Hernioplasty can be open in which hernia is reduced,the sac excised and a mesh is placed.this can also be done laparoscopically which is minimally invasive technique. Other posibilties in your scenario are lipoma Inguinal lymphadenopathy Femoral artery aneurysm Psoas abscess. I would suggest you to meet a general surgeon. Thanks. Hope the answer is helpful. Further querries will be appreciated. Regards.