you are most likely talking about varicoceles. this type of varicose veins are most common on the left side and in most cases will not cause any issues. however very large varicoceles have the potential to decrease your fertility by lowering your sperm count (on that side only). about 1 in 12 adolescent males have these things and they rarely require any medical intervention. to read more about them just put "adolescent varicoceles" in your google search engine.
variose veins on my left testicle? . hi im 17 years old and i have large varicose looking veins on my left testicle. they don't cause me any pain or bother or interfere with things in any way they're just ugly looking. i've had them for as long as i can remember at least since i hit puberty. are they a problem? and will they cause any health problems in the future?