A failure to properly any of the following health conditions can cause severe harm or death. Many of these conditions are treatable, with prompt attention and a proper diagnosis. Some of the more commonly misdiagnosed conditions include: Cancers – including breast, cervical, colon, lung, ovarian, prostate, and uterine cancer Birth injuries Heart disease, and stroke Vascular diseases such as strokes, thromboembolism, and aneurysm Lung diseases Infections including sepsis, meningitis, encephalitis, heart infections, spinal infections, and pneumonia