Hair Loss, a nightmare for many people is caused by a number of reasons. Besides hormones and heredity there are certain diseases also that makes your hair root weak causing them to fall out. Following is a list of diseases that contributes towards hair loss. I am sharing it with you so that if anybody of you is suffering through any of these diseases he might be able to figure out the cause of his hair loss and then use treatments accordingly.

• Anorexia Nervosa is a form of eating disorder usually observed among people that undergo a strict diet plan or starve intentionally.
• Thyroid diseases and disorder
• Graves disease that affects the thyroid resulting in hyperthyroidism.

• Habitual hair pulling
• Hair thinning as a result of severe illness
• Due to rubbing of head against something. This usually done by infants
• Menopause
• Myxedema is a Skin or tissue disorder usually caused by hypothyroidism.
• Polycystic ovary syndrome is an ovary related disease in women that affects the hormones

More detail on the Symptoms, causes and treatments of each of these diseases can be read at http://www.wrongdiagnosis.com/symptoms/thinning_hair/causes.htm