For the Consumer. Applies to naproxen: oral capsule liquid filled, oral suspension, oral tablet, oral tablet enteric coated, oral tablet extended release. As well as its needed effects, naproxen may cause unwanted side effects that require medical attention. Major Side Effects.
Most likely your testicle shrinkage and low sperm count were caused by inactive sexual activity for a while, sexual exhaustion due to over masturbation, and low testosterone level. Try Testicular Massage to stimulate your testicles for more blood flow.
1 Iron deposits in the skin cause darkening of the skin. Since females lose iron through menstrual blood loss, nonmenstruating women develop symptoms 15 to 20 years later.  Iron deposits in the pituitary gland and testicles cause shrinkage of the testicles and impotence.