Dr. Gustavo B. Parra M.D.

Recommended Articles

• How Long Can Sperm Live?

  Introduction An average man ejaculates 1/2 teaspoon to 1 teaspoon of semen. This small amount of semen contains millions of sperm cells. It only takes one sperm to fertilize an egg, but each sperm has a limited life span, which begins once it leaves a man's body.For a couple trying to have a baby,...

• Syphilis: If Left Untreated, What Happens to the Body?

  What is Syphilis?Syphilis is a venereal disease that is transmitted through vaginal, anal, or oral sexual contact. It can also be passed from a pregnant mother to her unborn baby, or from an infected blood donor to a person who receives the blood contaminated with syphilitic bacteria through a...

• Who is Likely to Become Obese?

  Obesity and being overweight have no boundaries. In America people of all ages, gender and ethnic and racial groups have been affected. This problem has been in existence for over 30 years and is growing.AdultsIn 2009 to 2010, almost 70 percent of Americans were obese or overweight according to the...

• What Causes Endometriosis? Is It Endometriosis or Just My Period?

  Many women have a difficult time during their periods, and sometimes, some may confuse painful symptoms they are experiencing for simply being part and parcel of women's normal menstrual woes without suspecting that the symptoms might be due to an aggressive form of endometriosis. Endometriosis can...

• What Are Hormones?

  IntroductionHormones are a special kind of chemical messengers in the body that are created by the endocrine glands. These chemical messengers control and coordinate complex processes in the body, such as growth, metabolism, fertility, and reproduction. Hormones can also influence the body's immune...

• What Are the Complications of Mumps?

  Mumps is a contagious illness caused by a virus. It can be passed through direct contact from one person to another. There are numerous problems that come along with mumps. They can be worrying, but they aren’t very serious and often improve as the illness passes. Common complications...