The symptoms and causes of individual scalp problems differ. You may experience scalp problems due to a variety of reasons – scalp infections, genetics, hormonal changes, medications, and thyroids. For instance, many people experience male pattern baldness due to genetics. Likewise, the health of the scalp is affected due to the side-effects of medications for cancer, depression, and high blood pressure. The physicians diagnose the scalp problems and identify the exact cause by examining the scalp, head, and hair.