1. Hereditary- Heredity hair loss is the most common cause of male and female pattern baldness. This condition is known as androgenetic alopecia. For one with family history of baldness, his hair's growth phase is shorter than the average people, therefore hair would be genetically programmed to fall out earlier. Men tend to lose hair in specific areas such as receding frontal hairline in an "M" shape and bald in crown area while Women generally experience thinning hair over the top of the head or crown, while most often maintaining a frontal hairline.

2. Alopecia Areata - In this type of hair loss, hair comes out by the roots in one or more spots .This disease occurs first during childhood or adults of any age. Sometimes it is called patchy baldness. Although the exact cause is not known, some experts believe Alopecia Areata may involve an immunological disorder, which causes the body to produce antibodies that attack the hair follicles. Treatments include topical medications or pills in some cases.

3. Alopecia Areata Childbirth - After pregnancy, it is common for women to experience temporary hair thinning. When a woman is pregnant, her hairs will be growing. After she gave birth to her baby, many hairs will re-enter the resting phase of the hair cycle. Usually women will notice large amounts of hair coming out in 2 to 3 months. But it is a temporary condition, and as hormone levels in the body return to pre-pregnancy levels after about six months, the excessive shedding normally ends.

4. Diet Stimulates Excessive Sebum on the scalp – Having too much red meat, fried or oily food would stimulate sebum secretion all over the scalp. Excessive sebum causes pore clogging and malnutrition of the hair follicles.

5. Stress and anxiety may result in sudden hair loss.

6. Frequent Usage of harsh Hair Care Products – Some poor quality hair gel, mousse, sprays, etc. contain abrasive chemicals, which can damage the hair follicles and lead to hair loss.

7. Medications side effects: Some prescription drugs may cause temporary hair shedding. Examples include some of the medications: lithium; beta blockers; the "blood-thinners", warfarin and heparin; amphetamines, etc., High doses of vitamin A may also cause hair shedding. Some cancer treatments can also cause sudden generalized hair loss

8. Fungus Infection on the Scalp - Caused by a ringworm, it usually begins with small patches of scaling that can spread and result in broken hair, redness, swelling, and even oozing. Consult your doctor immediately and some oral medication can help cure it.