Went to the doctor as recommended by everyone in this post. Some people wanted an update so for anyone wondering, they are just cysts and harmless. Check your balls guys.
My son had a laparoscopic surgery when he was an infant. Every now and then, 10 years later, the tiny scar fills up and gets a black head. Got this cute little thing out of it just now! (No children were harmed during the squeezing)