Ball Checker — Testicular Self-Exam App

Ball Checker is a simple, helpful mobile app that teaches how to do a testicular self-exam and reminds you to check yourself monthly. It’s designed to help you learn what’s normal for you and notice changes early.

Download the Ball Checker App

The app is free and available for both iOS and Android:

You can also sign up for monthly text reminders by texting selfexam to 888-986-7164. Your number is used only for reminders, and you can opt out at any time.

How a Testicular Self-Exam Works

Step 1 illustration - warm shower

1. Check after a warm shower. The warmth relaxes the scrotal skin and makes the exam easier.

Step 2 illustration - roll testicle

2. Roll each testicle gently. Use your thumb and fingers to feel for lumps, nodules, or changes in size or firmness.

Step 3 illustration - learn normal

3. Find the epididymis, a soft rope-like structure on the back of the testicle. If you are familiar with this structure, you won't mistake it for a suspicious lump.

Learn what’s normal for you. It’s normal for one testicle to hang lower or feel slightly larger. The key is noticing changes over time.

Most testicular cancers are found by men themselves by noticing changes to their testicle(s). The app helps you stay consistent and aware.

Learn More

For more information about testicular self-exams see:

How to Do a Testicular Self-Exam

If something doesn’t feel right or you notice a change, talk to your doctor right away. Early detection and treatment, when testicular cancer is almost 100% curable, is key.