Swelling in the groin or at the foramen occulta and palpability of the femoral head is one of the clinical diagnoses of anterior dislocation of the hip. Simple anterior dislocation of the hip is far less common than posterior dislocation, according to Brav (14% of posterior dislocations), Aufanc et al. (4% of posterior dislocations), and Thompson et al. (9% of posterior dislocations). What are the symptoms that are easily confused with it? 1. Swollen inguinal lymph nodes Swollen lymph nodes are very common and often indicate lesions in the tissues and organs surrounding the lymph nodes. Therefore, swollen inguinal lymph nodes usually suggest lesions of the genital system and organs of the abdominal cavity around the groin, as well as systemic diseases. 2. Perineal ulcer A vulvar ulcer is the absence or peeling of the normal epithelium of the skin mucosa in the anus and genital area. Since the causes of vulvar ulcers are complex and varied, it usually represents a class of diseases including many skin diseases and venereal diseases. 3. groin pain Many people do not think about groin pain, especially mild pain, but in fact, groin pain is a symptom of many diseases. There is a clear history of trauma with swelling in the groin or at the closed hole. The affected limb is in an abducted, externally rotated and flexed deformed position, with shortened limbs and elastic fixation. Swelling in the groin or closed foramen with palpation of the femoral head is present. In some patients, shock is present. x-ray: the femoral head may be found in the foramen occulta or near the suprapubic branch. History of trauma, abduction, external rotation and flexion deformity of the affected limb, shortening of the limb, elastic fixation, and the femoral head can be palpated in the groin or at the closed foramen, and X-ray can confirm the diagnosis.