In particular, testicular swelling can lead to a rise in intratesticular pressure followed by testicular atrophy.
[synapse.koreamed.org]
[…] unilateral or bilateral testicular swelling, symptoms and signs are relatively clear, of course, testicular swelling, and pain before or at the same time, there will always
[tcmwell.com]
Mumps orchitis generally manifests as a gradual worsening of testicular pain and swelling.
[synapse.koreamed.org]