A Visual Guide to Low Testosterone

What Is Testosterone? Testosterone may be the most notorious of hormones. It conjures up thoughts of muscles and masculinity. In fact, testosterone does fuel sex drive and muscle mass, but it also regulates mood and bone strength. When a man's level falls below normal, a doctor may prescribe shots, gels, or patches. But there is some debate over who needs treatment. Aging and Testosterone Levels

A slow drop in testosterone is a normal part of aging, sometimes called "andropause" or "male menopause." For many men, this doesn't cause any significant problems or symptoms. Others may notice a decline in muscle mass, depression, or less interest in sex. Low Testosterone and the Body Low testosterone can cause visible changes in some men: Smaller, softer testicles Larger breasts Thinner muscles (happens slowly over a period of years) Loss of body hair (also happens slowly, usually over a period of years) Low Testosterone Affects Bones You may think osteoporosis, or brittle bone disease, is a woman's disease, but it can affect men as well. Low testosterone is a common cause. As testosterone levels fall, the bones may get thinner, weaker, and more likely to break. Low Testosterone and Sex A drop in testosterone doesn't always interfere with sex, but it can make it more difficult for your brain and body to get aroused. Some men may notice a drop in libido, while others may lose interest in sex completely. Low testosterone can also make it tougher to get or keep an erection. Testosterone, Mood, and Thinking Some men have subtle problems like mood changes, poor concentration, and less energy. These symptoms can easily be caused by other health problems though, like anemia, depression, sleep troubles, or a chronic illness.