| A | B |
| Erectile Dysfunction | The inability to attain or maintain an erect penis that allows satisfactory sexual performance. |
| Epididymitis | Inflammation of the epididymis, secondary to infection. |
| Prostatitis | Inflammation of the prostate gland. Can be acute or chronic bacterial in nature. |
| Benign Prostatic Hypertrophy | An enlargement of the prostate gland resulting from increased number of epithelial cells. |
| Phimosis | A constriction of the uncircumcised foreskin around the head of the penis. |
| Priaprism | A painful erectin lasting longer than 6 hours. |
| Gynecomastia | A transient, noninflammatory enlargement of one or both breasts in men. |
| Orchitis | An acute inflammation of the testis. |