Most likely originating from the groin, thigh skin folds or anus. He returned in Week 5 before injuring his foot and experienced soreness in his groin. His favorite moves are headbutts, elbow strikes, and kicks to the groin. He withdrew after aggravating a groin injury. He would embed needles into his groin and abdomen. This is most commonly done with a skin graft (from groin or anterior elbow). Inguinal lymph nodes are lymph nodes in the human groin. It is the most common cause of groin hernia. Most commonly they involve the abdomen, specifically the groin. He was inactive for two contests with a groin injury. He retired hurt again citing his right groin. Kate becomes frightened, knees him in the groin and flees. Common side effects include urinary tract infections, fungal infections of the groin, and joint pains. Less commonly there may be large blisters which affect the groin or armpits. Zellmer then inserted the needle into the femoral vein in the groin.