Testicular trauma hardened small abdominal pain may be caused by testicular torsion, epididymitis, seminal vesiculitis and other diseases. 1. Testicular torsion: the etiology of this disease is inconclusive, may be related to genetic, increased testicular mobility and other reasons, can be induced by testicular injury, age, strenuous exercise, cold weather and other factors, so the patient will appear testicular trauma hardening abdominal pain, often accompanied by nausea, vomiting and other symptoms. 2. Epididymitis: this disease is mostly caused by bacterial infection, such as Escherichia coli, Staphylococcus aureus and so on. Secondly, it can also be caused by spreading infection, urine reflux, vas deferens obstruction, tuberculosis infection and so on. It can be induced by trauma, bad sexual behavior and other factors, followed by the phenomenon of testicular trauma and hardening of the abdomen, and the pain can also radiate to the groin, waist and other places. 3. Vesiculitis: the occurrence of this disease is related to pathogenic microbial infection, excessive sexual life, perineal injury and other reasons. The main symptom is pain in the pubic area, which can involve the suprapubic area, and can be manifested as testicular trauma hardening small abdominal pain. Testicular trauma hardened small abdominal pain may also be caused by other factors, it is recommended that patients go to a regular hospital, clear the cause of the disease and timely treatment, and strive for early recovery.