Causes of Hair Fall!

1. Physical stress

Any kind of physical trauma—surgery, a car accident, or a severe illness, even the flu—can cause temporary hair loss. This can trigger a type of hair loss called telogen effluvium. Hair has a programmed life cycle: a growth phase, rest phase and shedding phase. When you have a really stressful event, it can shock the hair cycle, (pushing) more hair into the shedding phase. Hair loss often becomes noticeable three-to-six months after the trauma.

2. Pregnancy

Pregnancy is one example of the type of physical stress that can cause hair loss (that and hormones). Pregnancy-related hair loss is seen more commonly after your baby has been delivered rather than actually during pregnancy.

3. Too much vitamin A

Overdoing vitamin A-containing supplements or medications can trigger hair loss,

4. Lack of protein

If you don't get enough protein in your diet, your body may ration protein by shutting down hair growth. This can happen about two to three months after a drop in protein intake.

5. Male Pattern Baldness

About two out of three men experience hair loss by age 60, and most of the time it's due to male pattern baldness. This type of hair loss, caused by a combo of genes and male sex hormones, usually follows a classic pattern in which the hair recedes at the temples, leaving an M-shaped hairline.

6. Heredity

Female-pattern hair loss, called androgenic or androgenetic alopecia, is basically the female version of male pattern baldness.If you come from a family where women started to have hair loss at a certain age, then you might be more prone to it. Unlike men, women don't tend to have a receding hairline, instead their part may widen and they may have noticeable thinning of hair.

7. Female hormones

Just as pregnancy hormone changes can cause hair loss, so can switching or going off birth-control pills. This can also cause telogen effluvium, and it may be more likely if you have a family history of hair loss. The change in the hormonal balance that occurs at menopause may also have the same result. 

8. Emotional stress

Emotional stress is less likely to cause hair loss than physical stress, but it can happen, for instance, in the case of divorce, after the death of a loved one, or while caring for an aging parent. More often, though, emotional stress won't actually precipitate the hair loss. It will exacerbate a problem that's already there.

9. Anemia

Almost one in 10 women aged 20 through 49 suffers from anemia due to an iron deficiency (the most common type of anemia), which is an easily fixable cause of hair loss.