What is this lump on my testicle the left side. It upper and more towards back. sometimes hurt if i touch it. Thanks?

It is important to see a doctor to determine the cause of the lump on your testicle.

There are many possible causes of lumps on the testicles, including:

* Epididymitis: This is an inflammation of the epididymis, a long, thin tube that carries sperm from the testicles to the penis. Epididymitis can be caused by a bacterial infection or by a sexually transmitted infection (STI).

* Testicular torsion: This is a condition in which the testicle twists on its spermatic cord, cutting off its blood supply. Testicular torsion is a medical emergency and requires immediate treatment.

* Hydrocele: This is a collection of fluid around the testicle. Hydroceles are usually painless, but they can sometimes cause discomfort.

* Spermatocele: This is a cyst that contains sperm. Spermatoceles are usually painless, but they can sometimes cause discomfort.

* Testicular cancer: This is a rare but serious type of cancer that can occur in the testicles. Testicular cancer is usually curable if it is caught early.

If you have a lump on your testicle, it is important to see a doctor to determine the cause. The doctor will perform a physical examination and may order tests, such as an ultrasound or a blood test, to help diagnose the cause of the lump.