Hair loss may occur as a symptom of a medical condition, or as a side effect of treatment/medication.

In any case, hair loss can be a traumatic experience for men and women (70 percent of women experience it during their lifetime).

And this extra strain only makes dealing with serious medical complaints more difficult.

If you’re worried about your hair loss reasons, contact your GP as soon as possible.

They may be able to eliminate common medical conditions and set your mind at ease.

To answer the question why is my hair falling out, we need to examine it from different aspects. Here are five common medical conditions causing hair loss:


Diabetes may lead to hair loss in multiple ways.

Blood vessels and tissue can become damaged due to unchecked blood sugar levels, ultimately affecting the body’s ability to grow hair.

But secondary medical conditions arising from diabetes may be to blame, too.

For example, thyroid issues and alopecia areata are known to inhibit healthy hair growth.

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Lupus is an autoimmune disease, in which the immune system attacks the patient’s own organs and tissue.

Numerous parts of the body will be affected by systemic inflammation, including the skin, joints, kidneys, major organs, and blood cells.

This condition can cause hair loss in two ways.

First, inflammation of the face and scalp prevents follicles from creating hair, disrupting the hair growth cycle.

Secondly, medications prescribed to treat lupus may leave hair follicles inactive by suppressing certain bodily systems, including the growth of new hair.

Changes to the hair’s structure can leave it brittle, causing it to break at the root.

Individuals affected by lupus might appear to be losing their hair, even though it’s still there.

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Cancer is, sadly, one of the most well-known medical conditions causing hair loss. Numerous treatments (specifically chemotherapy or radiotherapy) can lead patients to shed hair and prevent them producing more.

This may affect hair on the scalp, as well as eyelashes, pubic hair, eyebrows, etc.

The extent of hair loss may depend on the drugs used, their dosage, and the method of delivery (intravenous, pill, etc.).

Hair loss tends to occur within a few weeks of starting treatment, and hair growth could return to normal once treatment ends (though not this may not be the case with radiotherapy).

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As anaemia disrupts haemoglobin levels and restricts the amount of oxygen transported to follicles, hair may be unable to grow in its usual way.

The body diverts oxygen from non-essential cells (including the follicles) to help critical functions and organs work as they’re supposed to.

Hair follicles will be unable to transition from the growth cycle’s resting stage to the growth stage, leading to hair loss.

Iron deficiency is a common cause of anaemia. Hair loss may not be permanent.

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Scalp infection

A variety of scalp infections cause hair loss, including:

  • seborrheic dermatitis
  • ringworm
  • psoriasis
  • folliculitis
  • piedra

Each of these may disrupt follicles’ function and prevent hair growth.

For example, folliculitis leads to follicular inflammation and could destroy follicles in severe cases.

However, treatments are available, such as medications and hair loss shampoos.

If your hair loss is caused by a medical condition, the first step in dealing with it is identification.

Speaking to a GP is crucial if you believe you may be affected by any of these (or other) medical conditions.

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Hair transplant surgery could be an option if you’re affected by hair loss.

Cutting-edge technologies and techniques enable our experts to restore hair growth in balding/thinning areas of the scalp.

To learn more about how our hair transplant surgery team can help, contact HairPalace today.


What underlying medical conditions can cause hair loss?

Hair loss may be one indicator of a medical condition, such as a thyroid disorder (e.g. hyperthyroidism), syphilis, lupus, nutritional issues (such as an iron or protein deficiency), and a hormonal imbalance.

What is considered medical hair loss?

As a result of certain medical conditions, hair loss can be extensive. For example, alopecia areata (related to the immune system) leads to patchy hair loss, while ringworm and other scalp infections may contribute to shedding too. Trichotillomania, known as the hair-pulling disorder, is another potential cause.

When is hair loss a concern? 

If you suspect increased shedding could be due to medical conditions, hair loss may prompt you to visit your doctor. Patchy or bald areas on your scalp, steady thinning, or full-body hair loss may all indicate an underlying health issue.

Why is my hair falling out after Covid? 

It’s normal to lose some hair after having a fever or being ill, even with Covid. This is usually hair shedding rather than loss, and is known as telogen effluvium. It occurs when a higher number of hairs simultaneously pass into the telogen phase of the hair growth cycle than usual.