The number of men in the age of 65 and older continues to increase dramatically throughout the world. Gradual changes associated with male aging in the male reproductive system include changes in testicular tissue, prostate enlargement, and erectile dysfunction (ED). It is normal for erections to occur less frequently than when a man was younger, and aging men often have less ability to experience repeated ejaculation. As men ages, ED is believed to be of medical rather than psychological problem. Medications (especially those used to treat hypertension and certain other conditions) can cause some men to be unable to develop or maintain enough of an erection for intercourse or to alter ejaculations. Enlarged prostate may eventually interfere with urination and may render elderly men more likely to have urinary tract infections and/or prostatitis, especially in the presence of hypogonadism. Prostate cancer becomes more common as men age. It is one of the most frequent causes of cancer death in men. Older men are at higher risk of falling for a number of reasons, including postural hypotension, balance or gait impairment, polypharmacy (more than three prescription medications), and use of sedative-hypnotic medications. All these situations may severely impair sexual behaviour and, hence, the quality of life.

Using an organized approach to the varied aspects of geriatric health, primary care physicians can improve the care that they provide for their older patients. Interventional areas that are common to other age groups but have special implications for older patients include diet, exercise, and sexuality.

The main focus of this special issue will be on “male sexuality aspects and the quality of life in the aging male.” We welcome authors to submit original research articles, review articles, and clinical studies that address these issues. Potential topics include, but are not limited to:

• Bladder/prostate dysfunction and hypogonadism
• Endocrine functions of vitamin D with relation to gonadal function
• Obesity, diabetes, and hypogonadism
• Cardiovascular risks associated with hypogonadism
• Male frailty and hypogonadism
• Depression, neurological disorders, and disability
• Nutrition, physical activity, and sarcopenia
• Cancer survivors
• Stem cell treatment
• Medical treatment

Before submission authors should carefully read over the journal’s Author Guidelines, which are located at http://www.hindawi.com/journals/ije/guidelines/. Prospective authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts.hindawi.com/submit/journals/ije/sham/ according to the following timetable: