Dr. Jeffrey S. Yoshida M.D.

What does blood in semen mean?Blood found in urine or stool can be a cause for concern. Similarly, when a man comes across blood in semen, then it can make him anxious. The medical term for blood found in semen is hematospermia or hemospermia. Fortunately, blood in semen does not always indicate a...

Prostate cancer tends to affect only men. The incidence of prostate cancer is on the increase and tends to be more common in the western world. The causes of prostate cancer are poorly understood. However, risks factors include a positive family history, environmental and dietary factors. The...

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...

Generic Name: TamsulosinBrand Name: FlomaxWhat is tamsulosin?Tamsulosin is an alpha-blocker that helps treat the symptoms of benign prostatic hyperplasia (BPH) or an enlarged prostate. This medication works by relaxing the bladder and prostate muscles to help improve the flow of urine in men and...

A new study has shown that higher levels of bisphenol A (BPA) in urine may lower sperm count and motility in men, affecting their ability to father a child. The results of the study are published in the journal Fertility and Sterility and this is first of its kind to link the levels of BPA to sperm...

What is dysuria?Dysuria is the medical term for painful urination or discomfort while urinating. This painful, burning sensation is commonly associated with urinary tract infections, which are usually caused by bacteria. Dysuria is also a common symptom of cystitis (inflammation of the bladder) and...