Hair Fall During Monsoon: Causes, Symptoms, and Care

Many people notice increased hair shedding or hair breakage during the monsoon. Humidity, sweating, scalp oiliness, damp hair, dandruff flare-ups, and hair shaft fragility can make hair fall appear worse. In many cases, this is temporary and manageable with good scalp and hair care.

However, not all hair fall during monsoon is seasonal. Patchy hair loss, scalp infection, persistent itching, pus-filled bumps, sudden heavy shedding, widening parting, or hair fall lasting beyond 2–3 months should be assessed by a dermatologist.

This article explores the science behind monsoon-related hair fall, the symptoms to watch for, underlying dermatological causes, and evidence-based strategies to maintain hair and scalp health during this season.
 

Understanding the Hair Growth Cycle

To understand seasonal hair fall, it helps to first look at how hair grows. Hair follicles go through a cyclical process:

• Anagen (growth phase): Active growth phase lasting several years
• Catagen (transition phase): Short transition phase lasting a few weeks
• Telogen (resting phase): Resting phase after which hair sheds

At any given time, around 85–90% of hair is in the anagen phase, while 10–15% is in the telogen phase. Shedding of 50–100 strands per day is considered normal.

A sudden increase in shedding is called telogen effluvium and may occur after illness, stress, childbirth, rapid weight loss, nutritional deficiency, medications, or scalp disease.

During the monsoon, some people notice more hair fall because dampness, humidity, dandruff, scalp irritation, and hair breakage make shedding more visible.
 

Why Does Hair Fall Increase During Monsoon?

Hair fall during monsoon is multifactorial. It is not caused by a single factor but rather a combination of environmental, physiological, and lifestyle influences.
 

1. Increased Humidity

High humidity levels affect both the scalp and hair shaft:

• Moisture in the air causes the hair shaft (visible part of the hair) to swell, making it more prone to frizz and breakage
• The scalp becomes more oily and sweaty, creating an environment that supports microbial growth
• Prolonged dampness weakens the hair root over time
   

2. Scalp Dandruff, Seborrhoeic Dermatitis, and Infections

Warm, humid conditions may worsen dandruff, seborrhoeic dermatitis, or folliculitis in some people. Symptoms include itching, flaking, redness, greasy scales, or small painful bumps.

Patchy hair loss with scaling, broken hairs, black dots, swelling, or crusting may suggest tinea capitis, a contagious fungal infection of the scalp. This needs dermatologist evaluation and usually requires oral antifungal medication.
 

3. Telogen Effluvium (Seasonal Shedding)

Telogen effluvium is excessive hair shedding due to a temporary disturbance in the hair cycle. It often appears 2–3 months after a trigger such as fever, illness, childbirth, major stress, rapid weight loss, surgery, medication change, nutritional deficiency, or severe scalp disease.

Some people may notice seasonal variation in shedding, but persistent or heavy shedding should be evaluated rather than assumed to be seasonal.
 

4. Nutritional Variations

Hair growth depends on adequate protein, iron, zinc, vitamin D, vitamin B12, and overall calorie intake. Deficiencies may contribute to shedding, especially in women with heavy periods, restrictive diets, recent weight loss, chronic illness, or poor intake.

Do not take hair supplements routinely without testing or medical advice. Biotin deficiency is uncommon, and unnecessary high-dose biotin can interfere with some blood test results.
 

5. Reduced Sunlight Exposure

Vitamin D may be relevant in some hair loss conditions, but reduced sunlight during monsoon should not be assumed to be the cause of hair fall. Testing and supplementation should be guided by a doctor, especially if hair fall is persistent, severe, or associated with other symptoms.
 

6. Scalp Hygiene Challenges

Rainwater exposure and infrequent hair washing can impact scalp health:

• In urban environments, rainwater may carry environmental pollutants
• Leaving hair damp for prolonged periods increases the risk of fungal infections and hair shaft damage
   

Symptoms of Monsoon Hair Fall

Recognizing the pattern of hair fall is important, as it helps differentiate normal seasonal shedding from underlying dermatological or medical conditions.

• Increased hair strands noticed on the pillow, comb, or shower drain
• Hair appearing thinner overall, especially when tied or styled
• Increased hair shedding while washing or oiling
• Frizz, dryness, or a rough, uneven texture
• Short broken strands from hair shaft breakage
• Hair becoming more difficult to manage due to humidity
• Increased hair breakage, especially while combing
• Loss of natural shine, with hair appearing dull

See a dermatologist if there is patchy hair loss, widening parting, scalp pain, redness, pus-filled bumps, thick scaling, or shedding that continues beyond 2–3 months.
 

Scalp Symptoms

Changes in the scalp are common during monsoon and often contribute to hair fall:

• Itching or a persistent urge to scratch
• Flaking or visible dandruff
• Scalp greasiness or a sticky feeling
• Redness or irritation of the scalp
• Mild scalp odor in some cases, especially with sweating
• Increased sensitivity or tenderness of the scalp
• Small bumps or pustules (may indicate folliculitis)
• Patchy scaling or crusting in certain areas
   

Changes in Hair Behaviour

In addition to visible symptoms, many people notice functional changes in their hair:

• Hair tangles more easily due to moisture absorption
• Increased hair fall during detangling or styling
• Hair feeling limp or flat despite washing
• Difficulty maintaining hairstyles due to humidity
   

Dermatological Conditions That May Worsen in Monsoon

Humid weather may worsen scalp oiliness, dandruff, seborrhoeic dermatitis, and folliculitis. Patchy hair loss or thick scaling may also be due to tinea capitis, psoriasis, eczema, alopecia areata, or other inflammatory scalp conditions.

Medical evaluation is needed if symptoms are persistent, painful, patchy, associated with pus, or not improving with routine scalp care.
 

1. Seborrheic Dermatitis

A common, chronic inflammatory condition of the scalp:

• Characterized by yellowish, greasy flakes and an oily scalp
• Often accompanied by itching and redness
• Associated with overgrowth of Malassezia yeast on the scalp
• Symptoms may worsen in humid weather and with increased sweating

Scalp inflammation can interfere with the normal hair cycle and increase shedding. Treatment may include medicated shampoos such as ketoconazole, selenium sulphide, or zinc pyrithione, as advised by a dermatologist.
 

2. Dandruff

A milder and more common form of scalp flaking:

• Presents as white or grey flakes on the scalp and shoulders
• Caused by a combination of scalp irritation, oiliness, and microbial imbalance
• May or may not be associated with itching

While dandruff itself does not directly cause hair loss, frequent scratching and ongoing scalp inflammation can weaken hair roots and contribute to increased hair fall. If dandruff is severe, recurrent, red, painful, thickly scaly, or not improving with appropriate shampoo use, consult a dermatologist.
 

3. Fungal Infections (Tinea Capitis)

A contagious fungal infection of the scalp:

• More common in children, but adults can also be affected
• Presents with patchy hair loss, scaling, and itching
• May show black dots (broken hair), redness, or mild swelling in affected areas

Unlike dandruff, this condition requires prescription antifungal treatment. If untreated, it can lead to more significant hair loss. It requires medical diagnosis and usually oral antifungal treatment. Do not share combs, towels, caps, or hair accessories if infection is suspected.
 

4. Folliculitis

Inflammation or infection of the hair follicles:

• Can be caused by bacterial or fungal organisms
• Appears as small, red or pus-filled bumps on the scalp
• May be associated with pain, tenderness, or itching

Folliculitis can damage the hair follicle if persistent, leading to localized hair thinning or shedding. Recurrent, painful, spreading, or discharge-producing folliculitis should be assessed by a dermatologist. Treatment depends on whether the cause is bacterial, fungal, irritant-related, or inflammatory.

These conditions are often mistaken for simple “seasonal hair fall.” However, when scalp health is compromised, it can directly affect hair growth and retention. Early recognition and appropriate treatment can help prevent prolonged hair fall and potential complications.
 

Evidence-Based Hair Care During Monsoon

Managing hair fall during the monsoon requires a balanced approach, focusing on scalp hygiene, minimizing hair shaft damage, and addressing internal factors where relevant. The goal is not just to reduce shedding, but to maintain a healthy scalp environment that supports normal hair growth.
 

1. Maintain Scalp Hygiene

Keeping the scalp clean is essential, especially in humid conditions where sweat, oil, and environmental debris accumulate more easily.

• Wash hair 2–3 times a week, or more frequently if the scalp is oily or sweaty
• Use a mild, pH-balanced shampoo suitable for your scalp type
• If dandruff or seborrhoeic dermatitis is present, a dermatologist may advise shampoos containing ketoconazole, selenium sulphide, zinc pyrithione, salicylic acid, or other active ingredients.

Regular cleansing helps reduce microbial load and inflammation, both of which are known contributors to hair shedding.
 

2. Keep Hair Dry

Excess moisture is one of the most overlooked contributors to monsoon-related hair problems.

• Avoid leaving hair wet for prolonged periods
• Gently towel-dry; avoid vigorous rubbing that can cause breakage
• If needed, use a cool or low-heat setting on a hair dryer
• After getting drenched in rain, wash and dry hair promptly

Prolonged dampness can weaken the hair shaft and create conditions that promote fungal growth on the scalp.
 

3. Minimize Mechanical and Chemical Damage

Hair is more fragile in humid weather, making it important to reduce external stressors.

• Limit the use of heat styling tools such as straighteners and curling irons
• Use a wide-tooth comb, detangle gently from the ends upward, and avoid brushing wet hair aggressively.
• Tight hairstyles can contribute to traction-related hair loss over time.
• Postpone or space out chemical treatments like coloring, rebonding, or perming

Reducing these factors helps prevent breakage, which is often mistaken for hair fall.
 

4. Use Conditioning Appropriately

Conditioning plays an important role in protecting the hair shaft.

• Apply conditioner only to the mid-lengths and ends, not the scalp
• Use after every wash to reduce friction between hair strands
• Avoid applying conditioner or heavy serums directly to an oily, itchy, or inflamed scalp unless advised.

Conditioners help smooth the cuticle, making hair easier to manage and less prone to mechanical damage.
 

5. Ensure Nutritional Adequacy

Hair growth is closely linked to overall nutritional status. Deficiencies may not cause immediate hair fall but can contribute to increased shedding over time.

Key nutrients with clinical relevance include:

• Protein: Essential for keratin production
• Iron: Low levels are a wellstablished cause of hair loss, particularly in women
• Zinc: Important for hair follicle function and repair
• Biotin: Deficiency is rare but can lead to thinning hair
• Vitamin D: May play a role in regulating the hair growth cycle
   

Dietary sources include:

• Lean meats, eggs, and legumes
• Green leafy vegetables
• Nuts and seeds
• Milk and dairy products

A dermatologist may advise tests such as CBC, ferritin/iron studies, thyroid profile, vitamin D, or vitamin B12 depending on the history. Supplements should be used only when deficiency or clinical need is identified.
 

6. Manage Stress

Physiological and psychological stress can disrupt the hair growth cycle, pushing more hair into the shedding (telogen) phase.

• Maintain regular sleep patterns
• Engage in physical activity, as recommended for overall health
• Incorporate evidence-based stress management practices such as relaxation techniques

Studies have shown a clear association between stress and conditions like telogen effluvium.
 

7. Avoid Unverified or Aggressive Remedies

It is common to turn to home remedies during periods of increased hair fall, but not all are beneficial.

• Excessive oiling does not prevent hair fall caused by internal or hormonal factors, in fact, it may worsen dandruff or seborrhoeic dermatitis in some people
• Frequent switching of products can irritate the scalp
• Herbal or DIY treatments without clinical backing may worsen scalp sensitivity or trigger dermatitis

A consistent, evidence-based routine is more effective than multiple unproven interventions.
 

Medical Management of Monsoon Hair Fall

If hair fall is persistent, heavy, patchy, or associated with scalp symptoms, a dermatologist may assess the scalp and hair pattern using examination, trichoscopy, hair pull test, and selected blood tests.

Treatment depends on the cause:

• Dandruff/seborrhoeic dermatitis: Medicated shampoos or topical anti-inflammatory treatment if needed
• Tinea capitis: Oral antifungal medication, often with adjunctive shampoo to reduce spread
• Folliculitis: Antibacterial, antifungal, or anti-inflammatory treatment depending on cause
• Androgenetic alopecia: Minoxidil or other medical therapy under supervision
• Telogen effluvium: Identifying and correcting triggers such as illness, stress, dieting, iron deficiency, thyroid disease, or medication factors
• Deficiencies: Supplements only when deficiency is confirmed or strongly suspected clinically
   

Preventive Measures for Seasonal Hair Fall

Alongside medical care, simple preventive steps can help maintain scalp health and minimize seasonal hair fall:

• Use an umbrella, scarf, or hood to protect hair from rainwater exposure
• Wash hair after getting drenched in rain, especially in urban environments where rainwater may contain pollutants
• Avoid sharing combs, towels, caps, and hair accessories
• Clean hairbrushes and combs regularly to prevent buildup of oil, dirt, and microbes
• Maintain a consistent hair-washing routine, even during periods of frequent rain
• Ensure a balanced diet despite seasonal changes in food habits
• Keep the scalp dry; avoid tying or covering hair when it is still wet
• Seek early treatment for dandruff, itching, or scalp irritation rather than waiting for symptoms to worsen

Seasonal hair fall cannot always be completely avoided, but maintaining scalp health and minimizing external damage can significantly reduce its impact. Early attention to symptoms often prevents progression to more persistent conditions.
 

Myths vs Facts

Misconceptions around hair fall are common, especially during the monsoon. Separating myths from facts can help avoid unnecessary worry and ineffective practices.
 

• Myth: Hair fall in monsoon is permanent
• Fact: Most seasonal hair shedding is temporary and related to shifts in the hair growth cycle. Hair typically regrows once the cycle normalizes.
• Myth: Oiling hair prevents hair fall
• Fact: Oiling can improve hair shaft lubrication and manageability, but it does not prevent hair fall caused by internal factors such as hormonal changes, nutritional deficiencies, or scalp conditions.
• Myth: Washing hair frequently increases hair fall
• Fact: Washing does not cause hair fall. It simply dislodges hair that has already entered the shedding (telogen) phase, making the hair fall more noticeable.
• Myth: Cutting hair reduces hair fall
• Fact: Hair fall occurs at the follicle (root) level, not at the ends. Cutting hair may improve appearance but does not affect the rate of shedding.
• Myth: Dandruff directly causes hair loss
• Fact: Dandruff itself does not directly cause hair loss. However, inflammation and repeated scratching can weaken hair roots and contribute to increased shedding.
• Myth: Natural or herbal remedies are always safe
• Fact: “Natural” does not always mean safe. Some home remedies may irritate the scalp or worsen existing conditions, especially in humid weather.
• Myth: More shampooing damages hair during monsoon
• Fact: In humid conditions, regular cleansing is essential to remove sweat, oil, and microbes. Using a mild, suitable shampoo is key.
   

When to See a Dermatologist

While some increase in hair fall during the monsoon is expected, certain patterns and associated symptoms may indicate an underlying condition that requires medical attention.
 

Warning Signs to Watch For

• Hair fall consistently exceeding 150–200 strands per day, especially lasting over 6-8 weeks
• Noticeable patchy hair loss or well-defined bald spots
• Sudden or progressive thinning along the hairline, temples, or crown
• A visible widening of the parting or reduced hair density when tying hair
• Hair coming out in clumps, particularly during washing or combing
• Hair not regrowing or density not improving even after 2–3 months
• Persistent itching, redness, or inflammation of the scalp
• Thick scaling, crusting, or yellowish flakes on the scalp
• Presence of pus-filled bumps or recurrent boils (suggestive of folliculitis)
• Signs of infection such as swelling or discharge
• Hair fall after fever, childbirth, surgery, crash dieting, major stress, or a new medication
• Associated systemic signs like unexplained fatigue or weakness, sudden weight gain or loss, irregular menstrual cycles, pale skin, increased hair fall from eyebrows or other body areas
   

What Could It Indicate?

These patterns may point to underlying dermatological or systemic conditions, 

such as:

• Alopecia areata (autoimmune patchy hair loss)
• Chronic telogen effluvium (prolonged shedding beyond seasonal triggers)
• Androgenetic alopecia (pattern hair loss)
• Thyroid disorders affecting hair growth cycles
• Nutritional deficiencies, especially iron, protein, or vitamin deficiencies
• Scalp infections or inflammatory conditions

A dermatologist can identify the pattern and decide whether treatment, tests, or follow-up are needed.
 

Key Takeaways

• Mild increase in hair shedding or breakage during monsoon is common and often temporary.
• A daily hair fall of 50–100 strands is normal, but seasonal shedding may temporarily increase this.
• Monsoon-related hair fall is multifactorial, driven by humidity, scalp infections, nutritional changes, and reduced sunlight exposure.
• Humidity mainly worsens frizz, tangling, breakage, and scalp oiliness.
• Warm, moist conditions increase the risk of dandruff, seborrheic dermatitis, and fungal infections, all of which can contribute to hair fall.
• Seasonal shedding, or telogen effluvium, is typically self-limiting and improves once the hair cycle stabilizes.
• Changes in diet during monsoon may lead to nutritional deficiencies (iron, protein, zinc, vitamins), which can impact hair health.
• Common symptoms include increased shedding, thinning, frizz, dullness, along with scalp issues like itching, flaking, and greasiness.
• Not all hair fall is seasonal. Persistent or unusual patterns may indicate underlying medical or dermatological conditions.
• Maintaining scalp hygiene is critical; regular washing helps reduce oil, sweat, and microbial buildup.
• Keeping hair clean and dry is essential to prevent fungal growth and hair shaft damage.
• Minimizing heat styling, tight hairstyles, and chemical treatments can reduce breakage during this period.
• Balanced nutrition and stress management play a key role in supporting healthy hair growth.
• Avoid relying on unverified home remedies; consistent, evidence-based care is more effective.
• Medical treatment may include antifungal shampoos, minoxidil, supplements, or anti-inflammatory therapies, depending on the cause.
• Preventive measures like protecting hair from rain, avoiding shared accessories, and early treatment of scalp issues can reduce risk.
• See a dermatologist for patchy hair loss, scalp redness/pus/scaling, heavy shedding lasting more than 6–8 weeks, widening parting, or systemic symptoms.