Hair Loss



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 Home » Lifestyle » Lifestyle» Hair Loss

Hair Loss
Alternative Names: 

Alopecia

Baldness

Definition: 

Hair loss occurs when hair is shed at a faster-than-normal rate. The normal hair growth cycle involves an active growing phase followed by a resting phase. Normally about 50 to 100 hairs are lost on average each day, but certain medications or other stressors can cause the hair roots to prematurely enter the resting phase. This can lead to noticeable thinning or bald patches on the scalp or other areas of the body.

While there are many different types of hair loss, the two main types that can be experienced as a side effect of certain medications include:

  • Telogen effluvium – The most common form of temporary hair loss that can occur within two to four months of taking a drug or after an illness or stressful event. Hair roots are pushed to the resting state too soon, resulting in handfuls of hair that may fall out, with an average of 100 to 150 hairs shed daily.
  • Anagen effluvium – Severe and sudden hair loss that occurs within days or weeks of taking certain drugs (usually chemotherapy drugs). Hair loss is more extensive and can include eyebrows, eyelashes, and other areas of the body. Re-grown hair may not be as thick
Symptoms: 

Patients who experience hair loss typically notice an excess of hair in combs, brushes, in the shower, or on pillows. Handfuls of hair may come out at one time, or the hair loss can be more gradual. Sometimes hair loss can occur from more places than just the scalp.

Exams/Testing: 

In order to determine the cause of excessive hair loss, a patient’s medical history and family history will need to be discussed with a doctor, and a physical examination with inspection of hair may be necessary. Tests may be performed by a doctor to determine the cause of the hair loss. Possible tests include:

  • Pull test - Performed on scalp hair to determine the hair’s ability to fall out and test hair strength.
  • Skin scrapings – Tests for possible infection.
  • Scalp biopsy – Examines scalp tissue for abnormalities.
  • Hormone tests – Determines if there is an underlying hormone imbalance.
  • Screening tests for diseases – Can detect thyroid problems, diabetes, lupus, etc.
Outlook/Prognosis: 

When hair loss occurs as a result of medications, it may be difficult to pinpoint which drug is causing the hair loss if multiple drugs are being taken. With a doctor’s approval, a patient may need to stop taking their medications one at a time to check, but it can take two to three months after stopping a medication before hair loss is stopped.

Most cases of hair loss will improve once the disease, condition, or medication is no longer present, unless the hair loss is hereditary and caused by the natural aging process.

Patients who wish to slow hair loss and encourage hair regrowth often take medications such as finasteride (Propecia) or minoxidil (Rogaine).

Causes: 

There are many possible causes of hair loss. Hair loss can be a side effect of certain medications that interfere with the normal cycle of hair growth on the scalp or other areas of the body. Medications that have been shown to cause hair loss include:

  • Acne medications
  • Antibiotics
  • Anti-clotting medications
  • Antidepressants
  • Antifungals
  • Antihypertensives
  • Arthritis medications
  • Birth control pills
  • Chemotherapy drugs
  • Cholesterol medications
  • Epilepsy drugs
  • Heart medications
  • Hormone replacement therapy
  • Non-steroidal anti-inflammatory drugs (NSAIDs)
  • Thyroid medications
  • Weight loss drugs

Other possible causes of hair loss include:

  • Diseases such as diabetes and lupus
  • Hereditary factors
  • Hormonal changes, as occurs in pregnancy, childbirth, stopping or starting birth control pills, menopause, or in people with thyroid problems
  • Medical treatments including radiation or surgery
  • Nutritional deficiencies such as inadequate protein or iron in the diet or extreme diet changes
  • Physical or emotional shocks to the system such as high fever, sudden or excessive weight loss, infections, emotional stress following death of a loved one
Папка: Lifestyle | Добавил: Пим (30.03.2011)
Р: 986

Контакт      54.157.19.94          Четвъртък       08.12.2016, 13:57