Before you begin using hormonal birth control, make sure you understand how it can affect your body and what side effects you may experience. Birth control pills are the most common form of hormonal contraception used in the United States today. They work to prevent unplanned pregnancy in three ways:. If this egg comes into contact with sperm, you could become pregnant. The hormones found in birth control pills increase the buildup of sticky mucus on your cervix. This buildup makes it harder for sperm to enter the cervix.

If you feel a lump in your breast, your first thought may be that you have breast cancer. Both women and men can develop benign noncancerous breast lumps. This condition is known as benign breast disease. Benign breast lumps in women are common.

Having overly large breasts, for example, can cause back and neck pain, make it difficult to find clothes that fit well, and draw unwanted attention from others. Those suffering from enlarged breasts often wonder what has caused their large breasts in the first place, and if they have any control over their size. Common reasons that an individual may have overdeveloped breasts include the following:. In most cases having a large breast size cannot be prevented or treated without surgery, due to factors like genetics or hormones.