Part of the reason that plaque psoriasis can affect your daily life is because it’s usually a package deal: It comes with other diseases. While this is not always the case, up to 30% of those who suffer from psoriasis may also have psoriatic arthritis. Inflammatory bowel diseases have been known to co-occur, too, including ulcerative colitis or Crohn’s disease. Other problems include high blood pressure and other heart conditions, diabetes, obesity, depression, or cancer. See your doctor routinely, and let him or her know about any changes to your condition, or any new conditions you may have developed. Keeping them in check can make a huge difference in your quality of life.