Hair growth involves a normal period of development and expansion, followed by a natural cycle of reduction and hair loss. About 90 percent of the hair on your head is growing at any one time. The other 10 percent is “resting.” Every two to three months, the hair that has been “resting” falls out as new growth begins to take its place. It is also normal for small amounts of hair to fall out each day, as a result of brushing and shampooing. This is a healthy cycle for strong and vigorous hair. Abnormal hair loss causes can be caused by stress, surgery or medical procedures, pregnancy and/or hormonal imbalances, or medications and treatment of a disease.
Stress
Factors outside your body can contribute to causes of hair loss. One reason is stress. Stress to your body from environmental factors or stress caused by everyday living can sometimes rise to a level that will take a toll on your overall physical health. One of the physical factors affected may be hair loss.
Surgery
Hair loss causes can also come from having a major surgery or a major illness. Any time your body goes through a traumatic period, the health of your hair can suffer. Typically, three or four months after a major medical treatment or surgical procedure, it is not uncommon for hair loss to occur. This situation should rectify itself as your body continues to heal.
Pregnancy and Hormones
Pregnancy can be one of the causes of hair loss as during pregnancy, hormones tend to keep hair from falling out that would normally be ready to shed. About three months or so after the baby’s birth, the hormone levels will shift and the hair that would normally have fallen previously, leaves the scalp at that time. The normal cycle of hair growth should return as your body returns to its normal state.
Male or female hormones, such as estrogens or androgens, can also present a problem when they become out of balance for any reason. A thyroid that is overactive or underactive can figure prominently in hair loss causes.
Medications and Disease
Medications that you must take to help remedy a health issue may also have hair loss as a side effect. One solution for this might be stopping the medication, if that is an alternative, and perhaps trying another medication in its place. Blood thinners have been known to cause hair loss, as well as medications to treat gout, antidepressants, and birth control pills. Drugs used in some chemotherapy treatments for cancer can also be contributing hair loss causes.
The causes of hair loss are quite varied. Hair loss can also be an underlying sign of a serious disease, such as diabetes or lupus, so you should always be attuned to the symptoms of distress that your body sends out. Pay attention to the physical signals that your body messages to you, and you will have a good chance of overcoming any hair loss causes.


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