The question asks to identify the true statements regarding erectile dysfunction (ED) in diabetic males.

Diabetic Males ED: Statement Analysis

• Statement 1: It affects 60% of males
  The prevalence of ED in diabetic males is high, often cited between 50% to 75%, varying with age and duration of diabetes. While high, stating a precise figure like 60% without context can be limiting or inaccurate for all populations.
• Statement 2: Its common cause is an underlying neuro-vascular pathology
  This statement is true. Diabetes commonly leads to microvascular damage (affecting small blood vessels) and neuropathy (nerve damage), both of which impair the physiological mechanisms required for achieving and maintaining an erection.
• Statement 3: It may be aggravated by beta-adrenergic agonist drugs
  This statement is generally considered false or not a primary factor. While certain medications can impact sexual function, beta-adrenergic agonists are not typically highlighted as a common cause or direct aggravator of ED in diabetic males compared to the direct pathological effects of diabetes itself. Some vasoactive drugs might be used in treatment, but agonists aren't usually cited as an aggravating factor.
• Statement 4: Endocrine disorders like hyperprolactinemia may cause it
  This statement is true. Endocrine imbalances, such as hyperprolactinemia (high levels of prolactin), can disrupt the hormonal balance necessary for sexual function, leading to ED. Other endocrine disorders like hypogonadism (low testosterone) and thyroid dysfunction can also contribute.

Conclusion on True Statements

Based on the analysis, statements 2 and 4 accurately describe common causes and contributing factors to erectile dysfunction in diabetic males.

• Statement 2: Neuro-vascular pathology is a primary mechanism.
• Statement 4: Endocrine disorders are recognized causes.

Therefore, the correct combination of true statements is 2 and 4.