Hair loss can be distressing and confusing, whether it occurs suddenly in patches or gradually over time. There are many different types of alopecia, and identifying the exact cause is essential to prevent permanent hair loss and start effective treatment.

 

Dr Bryan McDonald is a Consultant Dermatologist in London with specialist expertise in diagnosing and treating all forms of hair loss and alopecia.

 

Types of hair loss and alopecia

• Alopecia areata (patchy hair loss)

• Androgenetic alopecia (male and female pattern hair loss)

• Telogen effluvium (stress-related shedding)

• Scarring alopecia (permanent hair loss if untreated)

 

Symptoms to look out for

• Sudden bald patches

• Widening parting or thinning

• Excess hair shedding

• Itchy or inflamed scalp

• Hair not regrowing after illness or stress

 

When should you see a dermatologist?

Early assessment is vital, especially for scarring types of alopecia where hair loss can become permanent without treatment.

 

How I diagnose hair loss

Assessment may include:

• Scalp examination with dermoscopy

• Blood tests where appropriate

• Assessment of medical history and triggers

 

Treatment options I offer

Depending on the type of alopecia, treatment may include:

• Steroid injections for alopecia areata

• Topical and oral medications

• Hormonal treatments where appropriate

• Long-term plans to stabilise hair loss

 

FAQs

1. Why am I losing hair?
Causes vary: genetic, autoimmune, hormonal, stress, or scarring conditions.

 

2. Can hair regrow?
Some types like alopecia areata are reversible; scarring alopecia indicate permanent follicle loss.

 

3. Do I need blood tests?
Sometimes — to check thyroid, iron, or hormonal causes.

 

4. Are steroid injections safe?
Yes, when administered by a specialist.

 

5. Do steroid injections hurt?

They are quick and well tolerated.

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5. How long until I see regrowth?
Usually 4–8 weeks for visible improvement.

 

Book a consultation

If you are concerned about hair loss, you can book a consultation with Dr Bryan McDonald for an accurate diagnosis and personalised treatment plan.