I have pimples on my testis that is dangerous?

Scrotal skin: There are a variety of dermatological conditions which can occur in the scrotal skin just like the skin anywhere else on your body. Very few are serious or dangerous. If you are concerned, have your family physician check you.

Probably not...: I assumed your stated pimples are on left side of your sac (scrotum). If so, they're usually harmless and from overactive hair-follicle-related sebaceous glands. If not hurting and of long duration with you, do nothing and leave them alone. Occasionally, such glands may be infected like acne. Of course, see doc timely for more doubt. Besides, practicing healthy lifestyle with no overindulgence..