While people generally attribute hair problems to stress and genetics, another surprising factor though is a person's diet. However, WPI has more of it, and WPC has less of it. Hair loss can be an upsetting condition to deal with. Also, tinea infections can cause additional symptoms, such as scaling of the scalp or areas of broken hairs that look like black dots. Reddit user cosmicatastrophy recently posted that they American Hair Loss Association - Drug Induced Hair Loss.