Muscle strain: This is the most common cause of groin pain, often resulting from overuse or direct injury to the muscles in the groin area, such as the adductor muscles. It is frequently seen in athletes who participate in sports that involve sudden changes of direction or kicking, like soccer or football.

Inguinal hernia: A protrusion of an organ or tissue through a weakened area in the groin, which can cause pain, especially when coughing, lifting, or bending over.
Osteitis pubis: An inflammatory condition affecting the pubic bone and surrounding structures, often seen in athletes involved in sports that involve kicking or rapid changes of direction.
Groin pull or adductor tendinitis: Inflammation of the tendons that attach the adductor muscles to the bone, typically resulting from overuse or direct injury.

Testicular torsion: A medical emergency where the spermatic cord becomes twisted, cutting off the blood supply to the testicle. It requires immediate attention to save the affected testicle.
Epididymitis or orchitis: Inflammation of the epididymis or testicle, often due to bacterial infection, which can cause severe pain and swelling in the groin area.
Aortic dissection or abdominal aortic aneurysm: Although less common, these conditions can present with groin pain due to the radiation of pain from the abdominal aorta down into the groin area.

Avulsion fractures: A type of fracture where a fragment of bone is pulled away by a tendon or ligament, which can occur in the groin area, especially in young athletes.
Slipped capital femoral epiphysis (SCFE): A condition in adolescents where the ball at the upper end of the femur (thigh bone) slips out of the socket, which can cause groin pain.
Psoas abscess: A collection of pus in the psoas muscle, which can cause groin pain, fever, and difficulty walking, often as a result of a spinal infection or other underlying conditions.