It's not without precedent:

http://europepmc.org/abstract/MED/18367099/reload=0;jsessionid=d7OVrESHqW82IVgBqp3v.20

http://www.juri.urologi.or.id/intratesticular-injection-of-20-hypertonic-sodium-chloride-as-a-novel-castration-method-a-preclinical-study.html

A few people have claimed success, but ...

In early March, I injected 1 ml of maximum-concentration (non-iodized) dissolved table salt into my right testicle. It was swollen and somewhat tender for a while, but it seemed to bounce back. Just like it did after a smallish CaCl2 injection. That thing seems bulletproof. About a week ago, I ...

Congrats, micdavi24!

10 days after the NaCl injection, the testicle is slightly larger than normal. It swelled up to more that double its normal volume, although the size seems to vary throughout the day. Sometimes it's hard; sometimes it's soft and squishy. Until today, it's been a bit tender.

I ...

I think the adverse reaction you got on your scrotum was as a result of leakage from your testicle. Some of the guys who have injected have reported this phenomenon, mostly when they have injected too much solution and it has leaked out of the testicle. I have injected both testicles twice without ...

About a year ago, I injected my left testicle with a batch of calcium chloride I made with a pickling agent I found in a store. It said it was pure CaCl2, but I'm a bit skeptical. It swelled the testicle nicely, and it's now small but somewhat sensitive and soft, so I'm not quite sure if it's dead ...