Dr. Oliver Lawernce Johnston MD

Genital herpes is one of the most common sexually transmitted diseases. It is associated with blisters or sores on the genitals. People with genital herpes may also experience flu-like symptoms. Most people with genital herpes may not experience any symptoms and may go on living normally without...

Hematuria, or the presence of blood in urine, is more of a symptom rather than a medical condition in itself. Although it can indicate a serious underlying disorder, most of the time, it is not of immediate concern. In some cases, the blood cells in urine are not visible to the naked eye and are...

What is dysuria?Dysuria is the medical term for painful urination or a burning sensation, discomfort, or difficulty when passing urine. In most cases, dysuria is a symptom of another medical condition. Males and females of any age can experience dysuria. However, this symptom is more common in...

Erectile dysfunction (ED) is a condition in which a man is unable to get or maintain an erection long enough during sexual activity to satisfy his sexual needs. The condition was referred as impotence before medical research highlighted the underlying causes. Most men encounter erection problems at...

It has become a popular myth that watching too much of pornography can cause an erectile dysfunction in men. Many men, who are addicted to porn, are reported to have a porn-induced erectile dysfunction. There are many doctors and reports that explain that this disease is rather psychological in...

If you were to pose this simple question to your doctor, you would get the response that science does not know for sure what triggers cancer in the testes. But if you were to dig a little deeper, you may be drawn into a discussion on chromosomes and genes, the basic building blocks of life, and how...