Why does my abdomen hurt when the testicle is bumped?

Oct 11, 2022 Source: Cainiu Health
Disease description:

I accidentally hit my testicle on the corner of a table. Now my lower abdomen hurts whenever I touch it. Why does my lower abdomen hurt when touched after hitting the testicle?

Doctor's answer (1)
Dr. Li Mingchuan
The testicle was hit, and pain occurs upon touching the lower abdomen, which is usually referred pain. Because the nerves of the lower abdomen and testicles share the same pathway, the brain may misinterpret the source of pain, leading to perceived pain in the wrong location. After testicular trauma, swelling of the testicular capsule may occur, so a scrotal ultrasound is needed to determine whether a hematoma is present. If a hematoma is found, antibiotics can be used to prevent infection.