Telogen Effluvium Causes, Symptoms, and Treatments

Struggling with hair loss? Learn what causes Telogen Effluvium, how to spot the symptoms early, and explore proven treatments that help patients regain confidence.

What Happens with Telogen Effluvium?

When you develop Telogen Effluvium, more hairs than usual shift into the resting phase of the growth cycle. This doesn’t happen all at once, but it can feel sudden when the shedding begins. Many people describe it as if their hair has lost some of its usual fullness almost overnight.

Although the increase in shedding can be upsetting, the hair follicles remain healthy. This means the hair is able to grow back once the underlying trigger has settled and your hair cycle has had time to reset. Telogen Effluvium is generally a temporary condition, and most people make a full recovery with the right guidance and reassurance.

Recovery Story

Priya’s Story

You may recognise some of your own feelings in Priya’s experience. When she first came to see us, she had been shedding far more hair than usual and couldn’t understand why it was happening. The change had been sudden, and like many people going through Telogen Effluvium, she felt frightened that the shedding might not stop.

We talked through everything that had been happening in her life at the time, including a particularly stressful period a few months earlier. Once we explained how events like this can delay shedding, she began to make sense of what was happening to her hair. That alone often brings a sense of relief.

Together, we created a simple, manageable plan to support her recovery. Within a short time, Priya noticed the shedding easing. Not long after, those first fine new hairs began to appear, and she gradually felt more like herself again.

Her story is a good reminder that Telogen Effluvium is usually temporary, even when it feels overwhelming. With reassurance, the right guidance, and a little patience, most people see a steady return to normal hair growth. If you’re feeling the way Priya once did, please know that you’re not alone and that recovery is entirely possible.

Read Priya’s story.

What are the Symptoms of Telogen Effluvium?

When Telogen Effluvium develops, one of the first things you usually notice is that far more hair is coming away than you’d expect.

It may show up on your clothes, in the shower, or simply when you run your hands through your hair. Many people describe it as a sudden change, often arriving out of the blue, and understandably, it can feel quite unsettling. The scalp itself looks typically healthy, which makes the shedding even more confusing.

Unlike conditions that cause bald patches, such as Alopecia Areata, Telogen Effluvium tends to cause a general, even reduction in scalp density. Your hair might feel lighter than it used to, or perhaps it doesn’t style in the same way. Ponytails can feel noticeably slimmer, too.

You may also find:

• More hair is coming away when brushing or washing
• Your parting appears a little wider due to reduced volume
• Short, fine new hairs are starting to appear as regrowth gets underway
• A slightly sensitive or “aware” feeling on the scalp in some cases

Sometimes this type of shedding lasts longer than expected. Low iron levels, thyroid problems, or chronic stress can cause hair to stay in its resting phase for an extended period. If you have noticed other symptoms along with hair shedding, it might be a good idea to speak with your GP about getting a simple blood test to check for any underlying causes.

What Triggers Telogen Effluvium?

Telogen Effluvium usually develops around two to three months after your body has gone through a period of stress or change. The delay can make the connection difficult to spot, but both emotional and physical factors can prompt more hairs than usual to enter the resting phase at the same time.

Emotional or psychological triggers

• Ongoing stress or anxiety
• Distressing news
• Bereavement or the loss of a loved one
• Major life upheavals
• Exhaustion from travel or significant changes in routine

Physical triggers

• Illness, particularly those involving a fever
• Viral infections
• Surgery or medical treatment
• Rapid weight loss or restrictive dieting
• Hormonal changes
• Post-pregnancy shedding
• Menopause
• Allergies or inflammatory responses
• Starting or stopping certain medications

Potential Long-Term Triggers

The following symptoms can cause an interruption of the hair growth cycle.

• Anaemia: Symptoms: paleness, tiredness, fainting, breathlessness.
  Low Serum ferritin levels/tissue iron stores
• Hypothyroidism: Weight gain, lethargy, sensitivity to cold, dry skin, brittle hair and nails, loss of other body hair and slowness of speech.
• Hyperthyroidism: Weight loss with increased appetite, extreme nervousness, eyeball protrusion, oily skin, muscle weakness, fatigue, excessive sweating, and constantly feeling warm.
• Diabetes: Frequently need to urinate, tiredness, perpetual thirst.
• Stress: Whichever the original reason can be self-perpetuating.

Telogen Effluvium vs Diffuse Thinning

Telogen Effluvium and Diffuse Thinning can look very similar, and it’s completely understandable if you’re not sure which one you’re experiencing. Both involve a general reduction in density across the scalp, but the causes and the way they behave over time are quite different.

Short-term Telogen Effluvium

Telogen Effluvium usually appears two to three months after a trigger, such as illness, stress, surgery, childbirth, or a significant change in your routine. The shedding often starts suddenly and can feel dramatic, but it’s generally temporary. Once the trigger has settled, regrowth tends to follow.

You may notice:

• A sudden increase in daily shedding
• Hair coming out more easily when washing or brushing
• Healthy-looking scalp with no bald patches
• Fine, short new hairs appearing as recovery begins

Diffuse Thinning (Chronic Telogen Effluvium)

Diffuse Thinning describes ongoing, long-term shedding rather than a short burst. It can continue for many months, and in some cases longer, as the underlying cause may still be active. Issues such as low iron or ferritin levels, thyroid imbalance, nutritional deficiencies, or prolonged stress are often linked to Diffuse Thinning.

With Diffuse Thinning, you might notice:

• Shedding that doesn’t fully settle over time
• A gradual reduction in overall volume
• A widening parting or flatter hair on top
• Periods where shedding increases and decreases without an obvious trigger

If your shedding has continued for several months, or if you suspect there may be an underlying issue such as iron or thyroid imbalance, you may find it helpful to explore our page on Diffuse Thinning for further guidance.

Why Are Pregnant Women More Susceptible to Telogen Effluvium?

It’s very common for women to notice changes in their hair during and after pregnancy. While you are pregnant, higher levels of oestrogen can keep more hairs than usual in the growth phase, which is why many women feel their hair looks thicker or fuller.

After childbirth, hormone levels gradually return to normal. As this happens, a larger number of hairs move into the resting phase at the same time, which can lead to noticeable shedding around two to three months later. This type of hair loss is known as postpartum Telogen Effluvium and can feel alarming, but it is a temporary response to the hormonal shift.

You may find that shedding continues for several weeks, sometimes longer, before settling. The hair usually recovers well once your body has had time to adjust. If the shedding becomes prolonged or you have other concerns, speaking with a trichologist can help ensure there are no additional factors involved, such as low iron levels or thyroid imbalance.

How Long Does Telogen Effluvium Last?

Telogen Effluvium follows a fairly predictable pattern, although it can feel anything but predictable when you’re going through it. Most people notice increased shedding for a period of weeks to a few months before things gradually begin to settle. This is because the hair cycle needs time to reset once the original trigger has passed.

Shedding often begins two to three months after the event that caused it. The active phase of hair fall may last anywhere from six weeks to three months, depending on the trigger and your overall health. After this, shedding usually slows, and you may start to see fine, short regrowth appearing around the hairline or across the scalp.

It can take several months for your hair to feel fuller again, as each new hair grows only about a centimetre a month. While this process can feel slow, it is a sign that your follicles are functioning normally. In most cases, Telogen Effluvium resolves fully once the body has recovered from the underlying trigger.

If shedding continues for longer than expected or seems to come and go in cycles, it may be worth looking into possible ongoing factors, such as low iron levels or thyroid imbalance. A trichologist can help identify whether anything is prolonging the hair cycle disruption.

The Hair Loss Centre Telogen Effluvium Treatments

When you’re experiencing sudden or unexpected shedding, having the right support can make a huge difference. Telogen Effluvium is usually a temporary condition, and with the correct guidance most people see a steady return to normal hair growth. Our role is to help you understand what has triggered your shedding and to support your recovery with a tailored plan.

During your consultation, we look at your medical history, recent events, and any symptoms that may point towards underlying factors such as low iron levels, thyroid imbalance, hormonal changes, or periods of prolonged stress. Identifying these issues early helps us guide you towards the most effective next steps.

Your treatment plan may include:

• Targeted topical treatments to support the scalp and encourage healthy regrowth
• Nutritional and lifestyle guidance to address factors such as low iron or stress
• Advice on hair care routines that protect fragile, shedding hair
• Monitoring and follow-up to ensure your shedding is settling and regrowth is progressing normally

Most clients find that once the trigger has been managed and the hair cycle stabilises, shedding gradually slows and new growth becomes more noticeable. We are here to support you throughout this process with clear explanations, ongoing care, and expert reassurance.

Telogen Effluvium FAQ

Further Guidance on Telogen Effluvium

Further Guidance on Telogen Effluvium

We’re Here to Help

The Hair Loss Centre’s trichologically formulated treatments and lotions reduce the immune response. It is best to treat the condition as soon as it is diagnosed. Let us help you. Book a free video consultation.

Can Telogen Effluvium be Cured?

Telogen Effluvium is reversible in most cases. It occurs when a sudden stressor pushes more hair follicles into the shedding phase, but once the trigger is removed, hair usually regrows within 3 to 6 months.

If the underlying cause persists, such as ongoing stress, illness, or nutritional deficiencies, then hair shedding may continue. Identifying and addressing the root cause is essential for full recovery.