The most common causes of hair loss are stress, nutritional deficiencies, dandruff, excessive oiliness of the scalp, illness, thyroid imbalance, as well as hair damage caused by procedures like hair coloring/dyeing, bleaching, straightening, perming, etc.

Hormonal imbalances during menopause, or post pregnancy can also cause hair loss. In men, hair loss can be due to hormonal factors it is called “male pattern baldness.”

Causes Excessive Hair Loss in Men

Many people experience dramatic levels of hair loss some weeks after major surgery or after illness. Whilst the level of hair loss may appear excessive it is really no more than a reaction to a specific event and hair will return to normal after a period of time. Medications may cause hair loss. Some anticoagulants and many chemotherapy regimes used in cancer treatments are well known for this. Hair usually returns once the medication stops. Some anti-depressants may result in hair loss and too much vitamin A can have the same effect. Other physical reasons for hair loss includes hormonal imbalances, over or under-active thyroid and certain fungal infections can all result in hair loss. Hair loss may also signal some underlying problem like diabetes or lupus. As it is not always possible to assess the cause for rapid or excessive hair loss it is always worth seeking medical advice to diagnose the cause for your hair loss.

Causes Excessive Hair Loss in Women

Causes for hair loss are highly individual, but can include any combination of the following:

Stress (emotional and physical), Hormonal imbalance, specifically androgen sensitivity, Change in hormonal birth control, Genetics,Immune system irregularities,Yeast overgrowth or fungi,Thyroid disorders, Crash or liquid protein diets leading to sudden dramatic weight loss, Nutritional deficiencies (especially vitaminD, vitamin A, iron, and protein), Cosmetics (allergies and harsh treatments), Radiation/chemotherapy, Dental treatment, Blood loss, Medications (including anticoagulants, anticonvulsants, antithyroid medication, and hormone therapy), Severe psychological distress or life-threatening situations, Disease, Surgery.Scarring.