Hair Loss Causes: Why Is Your Hair Falling Out?

Hair Loss Causes – Understanding Why Your Hair Is Falling Out

Updated: June 4, 2025
Authored by: Dr Batra's®

Medically reviewed by

Dr. Akshay Batra
24+ years of experience Leading Trichologist, Dermatologist & Homeopath | Advisor & Past President Trichological Society of London

Have you noticed excessive hair fall when combing, washing, or waking up to strands on your pillow? Hair loss can be temporary or progressive; ignoring the early signs can make it harder to reverse. While some amount of shedding is normal, excessive or persistent hair thinning often points to an underlying cause that needs attention.

Understanding what causes hair loss is the first step to finding the right treatment. From types of hair loss hormonal imbalances and nutritional deficiencies to stress and environmental damage, multiple factors can contribute to hair loss. Let’s dive into the common causes and explore natural solutions, including homeopathy, to help regain healthy hair.

What Causes Hair Loss?

Hair loss occurs when the natural growth cycle is disrupted, causing hair follicles to shrink, weaken, or stop producing new hair. The most common causes of hair loss include:

Genetics (hereditary hair loss)
Hormonal imbalances affecting hair follicle health
Nutritional deficiencies that weaken hair structure
Medical conditions such as thyroid disorders and autoimmune diseases
External factors like pollution, stress, and harsh hair treatments

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Common Reasons for Hair Loss/hairfall

There are many contributing factors behind hair loss in women and reasons for hair loss in men, ranging from genetics to lifestyle and environmental influences. Below are some of the most common causes:

Age-related thinning as hair follicles weaken over time
Genetic hair loss causing male and female pattern baldness
Postpartum hair loss due to hormonal changes after pregnancy
Seasonal hair shedding during certain times of the year
Excessive hairstyling leading to breakage and hair thinning

Hormonal Imbalances and Hair Loss

Hormonal fluctuations affect hair health, leading to increased shedding and thinning.

DHT (Dihydrotestosterone) in men shrinks hair follicles, causing male pattern baldness
Thyroid disorders disrupt hair growth cycles, leading to thinning
Hormonal changes in women due to PCOS, pregnancy, and menopause trigger hair fall

Nutritional Deficiencies and Hair Loss

Iron deficiency weakens hair roots, leading to increased shedding
Lack of biotin, zinc, and vitamin D slows hair growth and affects follicle health
Crash diets and protein deficiency contribute to hair thinning
Dehydration leads to a dry scalp, affecting hair quality

Medical Conditions/reasons That Lead to Hair Loss

Certain illnesses can impact hair growth. Common conditions include:

Alopecia Areata: An autoimmune disorder causing sudden bald patches
Diabetes: Poor circulation affects hair follicle health
Dengue fever: Triggers post-infection hair shedding
Scalp infections: Fungal and bacterial infections damage follicles

Can External Factors Cause Hair Fall?

There are various reasons for hair fall /causes of hair fall including:

Pollution leads to scalp inflammation and weakens hair strands
Harsh chemical treatments (dyes, relaxers) cause hair breakage
Frequent heat styling damages the hair cuticles
Stress increases cortisol levels, pushing hair follicles into a resting phase
Diseases like malaria, typhoid, and dengue can cause hair loss

How Dr Batra’s® Can Help

With over 40 years of expertise in hair restoration and a 96.6% success rate, Dr Batra’s® offers clinically proven, homeopathic treatments for hair fall. Our approach focuses on:

Identifying the root cause with advanced AI-driven scalp analysis
Personalised homeopathic solutions that strengthen hair from within
Boosting scalp health with nutritional guidance and expert care
Safe, side-effect-free hair fall treatment treatment designed for long-term hair regrowth
Aesthetic treatments accelerate hair regrowth and improve scalp health for faster, more effective hair loss solutions

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Conclusion

Hair loss can result from types of hair loss including genetics, hormones, nutrition, or environmental factors
Early diagnosis helps in effective treatment
Homeopathy offers a natural, long-term solution
Healthy lifestyle choices support hair regrowth

Sources

Relevant Blogs

Hair Loss Symptoms – Recognising the Early Signs

Causes of Female Pattern Baldness

Types of Hair Loss: Understanding Different Hair Loss Conditions

FAQs

Deficiencies in biotin (B7), vitamin D, iron, and zinc can weaken hair and lead to excessive shedding. A nutrient-rich diet supports healthy hair growth and scalp health.

Yes. Pollution increases oxidative stress, clogs follicles, and damages the scalp, which can lead to thinning and even permanent hair loss if left unmanaged.

Diabetes can disrupt blood flow to hair follicles and cause hormonal imbalances, leading to delayed regrowth and increased hair shedding.

Yes. Stress triggers telogen effluvium, a condition where more hairs enter the shedding phase. Hair often regrows once stress is under control.

Losing 50–100 strands per day is normal. Sudden, patchy, or excessive hair loss signals an underlying issue and requires medical evaluation.

Yes. Men’s hair loss is mostly genetic and DHT-related. Women experience hair loss due to factors like PCOS, menopause, pregnancy, and stress.

Absolutely. Poor diet, lack of sleep, stress, smoking, and harsh hair styling habits can all contribute to weakened, thinning hair over time.

Yes, poor diet, stress, lack of sleep, smoking, and excessive hairstyling can weaken hair. Adopting a healthy lifestyle, proper nutrition, and stress management helps maintain strong, healthy hair.