Hair Loss In Teenagers And 10 Reasons Why It Happens

Teenagers undergo a metamorphosis during puberty, both in body and mind. It's normal to shed a couple of strands daily, but increased hair fall in teenagers may indicate underlying medical issues. 

During adolescence, our hormones are in a tizzy. Pair this with lack of proper nutrition, lack of hair care, genetic factors, and you have the most common causes of hair loss. Teenaged girls are often more susceptible than teenage boys to experience noticeable hair loss.

Hair Loss in Teenagers

Teenagers are prone to hair loss because they are going through rapid transformation. Experiencing hair fall, and a newfound self-consciousness makes it difficult to accept it without a valid explanation. 


Hair shedding is a sign of approaching adulthood, a natural mechanism to replace damaged scalp and hair. Plus, teenagers often have nutrition deficiencies, hereditary factors, and even menstrual complications that can cause abrupt hair shedding. 

What leads to Teenage Hair Loss?

Hair loss works differently for both men and women. While both experience puberty, here's why they experience hair fall: 


Teenage Hair Loss and Genes 

Hereditary traits critically influence hair fall over others. A poor history of hairline issues triggers the scalp, making it hard to keep follicles growing. Patients with a hostile genetic history get pattern baldness early in their life (during their teenage years). 

Besides, triggering thinning of follicles, leading to patch formation over the scalp. It creates poor hairline texture, which gradually leads to permanent baldness.

Teenage Hair Loss Caused by Poor Immunity 

Patients with unstable immunity can experience sudden loss of hair. The immune system may attack scalp cells and destroy hair follicles, triggering a rapid shedding of hair. It leads to patch-like formation over the scalp. It is known as alopecia areata, an auto-immune disease with little or no fatality.

Patients can experience hair loss because of lupus, also an auto-immune disorder. Organs or tissues get affected by lupus, leading to inflammation, pain and rapid shedding of hair.

Hair Fall and Lack of Proper Nutrition In Teenagers

The deficiency of the following affects the hairline and triggers shedding:

  • Absence of essential nutrients like vitamin-A, vitamin-C, vitamin-D, vitamin-E

  • Lack of macronutrients (biotin, folic acid, niacin)

  • Low presence of vital minerals (iron, selenium, zinc, potassium, calcium)

  • Food allergy and absence of alternative diet to replenish nutrition

Hair Loss and Thyroid disorder In Teenagers

The thyroid is a vital organ responsible for maintaining metabolism in the human body. An unstable thyroid affects the body temperature, affecting the volume of hair

It also triggers severe hormonal imbalances, which make the scalp sensitive and triggers the developing follicle, causing rapid shedding. Patients with thyroid disease suffer from low immunity, which affects their overall well-being. 

What is Hair Loss and Polycystic Ovary Syndrome (PCOS) in Teenagers?

PCOS is a female reproductive complication where the ovary experiences painful cyst formation on its surface. It leads to irregular and painful menstruation, besides altering natural hormones. Like thyroid problems, PCOS affects the body's metabolism, and causes hair fall

Patients affected with PCOS experience abrupt thinning of hairline along with rapid shedding. To reduce this, patients should consult with dermatologists and gynecologists in tandem.

Hair Loss in Teenagers from Poor Hair Care

Poor management of hair is a factor that can cause massive hair fall. Tight hairstyles lead to traction alopecia (hairline sheds from tensile stress leading to patchy formation).

  • Lack of comprehensive haircare to nourish the roots and follicles.

  • Poor management leads to dry scalp, making strands brittle, which leads to shedding.

  • Damaging scalp pores from the lack of cleansing leads to clogging and increases pathogenic problems around the roots

Hair Loss in Teenagers from Underlying Medical Conditions

Hair loss can happen as a side effect of undergoing treatment for many disorders. It includes:

  • Medications that treat acnes can lead to shedding from drug incompatibility

  • Side effects of alopecia areata treatment

  • Post-surgical shedding after critical operations or during treatments like chemotherapy for cancer

Hair Loss in Teenagers from Lifestyle Issues

Uniform thinning of hair can happen because of poor lifestyle choices like:

  • Chain-smoking

  • Excessive alcohol consumption 
  • Improper sleep routine

  • Lacking proper hygiene

  • A junk food habit
  • Not staying hydrated

  • Prolonged exposure to sunlight

  • Exposure to other extreme weather 

Hair Loss  in Teenagers and Mental Health Issues

Patients having trichotillomania have a self-destructive tendency towards one's own hair. For example, patients with anorexia nervosa abstain from eating, which gravely affects overall health. It leads to severe deficiencies, which triggers abnormal shedding of hair. This requires mental health intervention to stop losing hair.

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