
Search Specialties, Conditions, and Treatments
Condition
Many men experience changes in their sexual drive (also known as libido) over the course of their lives. It is normal for sexual interest to wax and wane intermittently. Temporary decreases in libido can be due to changes in relationships, work or family …
Condition
Cystinuria is a relatively rare disease in which people inherit an inability to process an amino acid called cystine. Excess cystine winds up in the urine, where it can lead to the formation of stones in the bladder, kidneys, and ureters. Cystine stones …
Specialty
Testicles are two egg-shaped structures with a firm, slightly spongy feel located below the penis in the sac of loose skin called the scrotum. The size of the testicles should be roughly the same. Two main functions of the testicles include sperm and …