Testicular pain is pain that occurs in or around one or both testicles. The testicles are very sensitive, and even a minor injury can cause pain or discomfort. Pain might arise from within the testicle itself or from the coiled tube and supporting tissue behind the testicle (epididymis).

Common causes of testicle pain include:

• Injury or trauma: An injury to your testicles may happen during sports, exercise or an accident.
• Twisting of the testicles that can cut off the blood supply (testicular torsion). It is most common in young men between 10 and 20 years old. It is a medical emergency that needs to be treated as soon as possible. If surgery is performed within 4 hours, most testicles can be saved.
• Infection or swelling of the sperm ducts (epididymitis) or testicles (orchitis).
• Sexually transmitted infections(like gonorrhea, syphilis and chlamydia) can affect multiple body parts, including the testicles. This can cause the testicles to become swollen or inflamed (a painful, burning feeling).
• Testicular canceris almost always painless. But any testicle lump should be checked out by your health care provider, whether or not there is pain.
• Mild pain may be caused by fluid collection in the scrotum, such as:
  • Enlarged veins in the scrotum (varicocele).
  • Cyst in the epididymis that often contains dead sperm cells (spermatocele).
  • Fluid surrounding the testicle (hydrocele).
• Sometimes, what seems to be testicle pain is caused by a problem that starts in the groin, abdomen or somewhere else — for example, kidney stones and some hernias can cause testicle pain.

With so many possible causes for your testicular pain, you may be wondering when should you be worry about and consult you medical providers due this affliction. As a general rule you should seek immediate medical care if:

• Your pain is severe or sudden.
• You have had an injury or trauma to the scrotum, and you still have pain or swelling after 1 hour.
• Your pain is accompanied by nausea or vomiting.

You should also set up and appointment with your provider as soon as possible if in addition to the pain:

• You feel a lump in the scrotum.
• You have a fever.
• Your scrotum is warm, tender to the touch, or red.

Refences:

https://my.clevelandclinic.org/health/symptoms/16292-testicular-pain

https://my.clevelandclinic.org/health/symptoms/16292-testicular-pain

https://www.mountsinai.org/health-library/symptoms/testicle-pain