Man at doctor's office (Getty Images)

Testicular cancer is the most common form of cancer found in men between the ages of 15 and 35, but it’s largely asymptomatic. That’s why monthly self exams are important for finding possibly problematic lumps early on.

“I recommend that when guys go for a checkup they have their doctor do an exam and explain what feels normal and not, so that they know what to look for on their own,” says urologist Tobias Kohler. Basically, you want to feel around for a rock-like growth in the testicles. “It will be hard and irregularly shaped,” says Dr. Kohler.

Since testicular cancer—especially in the early stages—tends to be painless, a quick check in the shower is the best way to catch a lump. “Testicular cancer has some of the highest survival rates of any cancer,” says Dr. Kohler.

So don’t panic if you feel a lump. Just go see your doctor to get it checked out.

Tobias Kohler, MD, MPH, is a urologist and an associate professor at Southern Illinois University School of Medicine. 

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