Testicular failure is the inability of the  testicles   to produce sperm or male hormones.        
                    
                 
                  
                 
                
                
               
               
                
                    
                        Alternative Names
                    
                                   Primary hypogonadism - male        
                    
                 
                
                    
                        Causes, incidence, and risk factors
                    
                          Causes of testicular failure include chromosomal abnormalities,  testicular torsion  , direct trauma to the  testicles  , diseases that affect the testicle (such as  mumps orchitis   and  testicular cancer  ), and a variety of drugs. The condition is uncommon.   Increased risk is associated with activities that may cause constant, low level trauma to the  scrotum   (such as riding a motorcycle) or frequent administration of a drug known to affect testicular function (such as heavy  marijuana   use or taking some prescription medications). Men who had  undescended testicles   at birth are at higher risk.
                    
                 
                
                    
                        Signs and tests
                    
                                   A  physical examination   may reveal:   
 Ambiguous genitalia (usually noted in infancy)     Abnormally small testicle     Tumor or mass (aggregation of cells) on or near the testicle   Hormonal levels determined through blood tests may detect low  testosterone   levels and high levels of gonadotropins (pituitary hormones FSH and LH).        
                    
                
 
                
                    
                        Treatment
                    
                                   Supplementation of male hormones may be successful in treating some forms of testicular failure. In cases that appear to be related to specific exposure or activity exposure, removal of the drug or activity may result in return of normal testicular function.        
                    
                 
                
                
                    
                        Expectations (prognosis)
                    
                                   Many forms of testicular failure are irreversible. However, androgen replacement is effective in reversing symptoms, though it may not restore fertility.        
                    
                 
                
                    
                        Complications
                    
                                   Testicular failure prior to the onset of puberty will prohibit normal growth, specifically the development of adult male characteristics.        
                    
                 
                
                    
                        Calling your health care provider
                    
                                   Call for an appointment with your health care provider if symptoms occur.        
                    
                 
                
                    
                        Prevention
                    
                                   Avoid higher-risk activities or monitor testicular function when involved in such activities. Also, cease the activity with the initial onset of symptoms.