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Common Diseases or Illnesses That Can Cause Hair Loss

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There are many factors that can cause hair loss, no matter the cause though, its affect can be devastating.

Disorders and illnesses that cause hair loss are not widely publicised – you don’t often get to read about them in the news or popular blog sites!

It can often feel taboo to discuss your hair loss, and with so much conflicting information out there it can also be very overwhelming.

This short blog covers some causes of hair loss, and here at Morgan’s we see lots of different issues people are living with.

In fact, we have seen clients with all of these conditions and more!

Alopecia Areata

Alopecia areata is an autoimmune disorder. It is characterised by the loss of hair patches that occur when your immune system accidentally attacks your hair follicles, disrupting their normal growth cycle.

Alopecia areata can manifest at any age and affects both genders. Bald patches on the scalp or other parts of the face, such as the beard area for males, are symptoms of this disease.

Traction Alopecia

Hair loss induced by persistent stress on hair strands is known as traction alopecia. This force damages and scars the hair follicles, making hair difficult to regrow. This is one cause of hair loss that nearly every female is familiar with.

Avoiding hairstyles that pull your hair firmly, such as tight braids or ponytails, is the greatest approach to prevent traction alopecia. The moment you stop putting your hair through stress, the difference is glaring. 

Sjogren’s Syndrome

Sjogren’s syndrome is a disorder in which the immune system assaults the glands that produce moisture, resulting in severe dryness throughout the body.

This is an autoimmune illness that will certainly target your hair follicles, resulting in hair loss.

Eating Disorders

The most common demographics affected by eating disorders are teenagers. However, some adults can also be affected. Although teenage girls are more likely to suffer from anorexia or bulimia, older women can also experience eating disorders.

When a person has an eating disorder, their body is deprived of the necessary daily nutrients for hair health and development often resulting in weakened hair and at times some loss is suffered.


Lupus is a disease that mostly affects women. It is an autoimmune illness, which means that instead of fighting for the body, your immune system attacks the healthy cells in your body instead.

This can result in hair loss because the healthy cells in your scalp can also be affected. As a result of not having a healthy scalp, your hair growth can potentially suffer. Fortunately, if lupus is treated, your hair growth can possibly be restored.

Thyroid Disease

The thyroid is a gland near the base of the neck, just below the Adam’s apple, that regulates the pace at which the body’s cells turn food into energy. Hair loss can be caused by hypothyroidism in both men and women since hair loss normally worsens with age.

This disease is characterised by an autoimmune illness in which your immune system kills healthy cells rather than protecting them.


Trichotillomania, commonly known as obsessive hair pulling, is an impulse control condition. It’s known as “obsessive-compulsive spectrum disorder”.

People with this illness find it difficult to prevent themselves from pulling  their hair out. The compulsion to pull can mean that people will take out one strand at a time or even large amounts, potentially resulting in bald patches across the scalp.

Polycystic Ovarian Syndrome (PCOS)

The most prevalent hormonal condition among women of reproductive age is polycystic ovarian syndrome (PCOS). Symptoms include irregular periods, acne, extra hair on the face or body, difficulty conceiving, and insulin resistance.

Chemotherapy and Radiotherapy

Chemotherapy is a cancer treatment. It can be used for any of the different kinds of cancer, and depending on the type, phase, and severity of the cancer cells, it can be administered orally or intravenously. 

Although enormous strides have been achieved in treating cancer patients with chemotherapy, hair loss is one of the adverse effects of this treatment.

Hair loss is a common side effect of radiotherapy, but unlike hair loss during chemotherapy, it only causes hair loss in the area being treated.

Gender-related Hair Loss


Male-pattern baldness is the most prevalent cause of hair loss in males aged 35 to 60 years.

Because this form of hair loss is inherited genetically, the thinning develops gradually over time. As a result, males must start caring for their hair at a young age!

This involves utilising specific shampoos designed to repair thinning hair or encourage new growth so that they don’t develop thinning spots later on.


Women who lose their hair may also have hereditary male-pattern baldness or low estrogen levels induced by pregnancy, lactation, or menopause.

Wearing wigs until your hair comes back is a popular therapy for this kind of hair loss. Other treatments for bald spots include using specific shampoos and scalp massages to promote blood flow around the scalp and staying hydrated with lots of water.

COVID related hair loss

Research has suggested that when the body goes through a stressful phase of illness – fighting off Covid for example – it can send the hair follicles into the dormant phase. The type of hair shedding that is linked with the virus is called telogen effluvium (TE), which occurs after a period of either physical or mental strain.

Consult a medical professional

It is essential to consult a doctor or medical professional to find out if there is a medical reason for your hair loss and to explore what possible treatments are available.

Hair loss transformations

Morgan’s are specialists in hair loss. See our amazing transformations.

Book a hair loss consultation

Suffering from hair loss can be very distressing, but the good news is that we see thousands of men, women and children every year and successfully help to make them feel and look better.

We help people feel great about themselves through our innovative UltraStrands hair integration system and our amazing array of wigs, hair toppers and hair extensions.

We understand that thinning hair and total hair loss is devastating and can really damage your self-esteem and confidence. We are an NHS approved Wig Supplier within the UK.

We help you deal with the emotional impact of your hair loss and take control again. 

Our entire team are experienced and sympathetic having treated and helped thousands of women and men with their hair loss. 

Our hair loss consultation service is available in ChesterPrestatyn and Llandudno.

Rebecca ♥

Rebecca Morgan-Brennan, Founder


Are you living with and suffering from thinning hair or hair loss?

Our hair loss consultation service aims to put you at ease and to ensure you have the best possible experience.