The causes of swelling and pain in the groin of women are commonly the following: 1. strains and contusions in the groin area, which cause local symptoms of swelling and pain due to the presence of injuries. 2. problems seen in the hip joint, such as synovitis of the hip joint or femoral head necrosis of the hip joint, which also lead to symptoms of swelling and pain in the groin area. 3. corresponding local infections seen in women, such as Urinary tract infections or infections in the lower extremities can lead to a corresponding reaction in the lymph nodes of the region and symptoms of distension and pain. Patients are advised to go to the hospital for detailed examination, as they must be judged after blood collection, physical examination by the doctor and detailed medical history, otherwise it is easy to lead to misdiagnosis, misdiagnosis and adverse sequelae.