Our expert says:
Hi Jean, thank you for the question and my apologies for the delay with my response.
This is a difficult question to answer over the net as there are a number of causes of sudden hair loss and most of them require blood tests and/or skin biopsies. Your best option would be to see a dermatologist or your family doctor who can investigate further.
For completeness sake I have listed all the causes of hair loss below - hair loss is divided into a number of broad groups:
The differential diagnosis of diffuse, extensive, sub acute and chronic non-scarring hair loss in women include:
Telogen effluvium: stress related or after pregnancy, or sfter significant weight loss
Androgenic alopecia: usually genetic and typically has no hormonal changes
Sex hormone abnormalities
Iron deficiency: iron levels normal so further in depth tests required
Connective tissue disease
Drug induced alopecia
Alopecia areata: some causes include Tinea capitis, secondry syphilis, and frontal fibrosing alopecia
Scarring alopecia(I would definitely look into these):
Infection: bacterial, fungal, viral
Inflammatory dermatoses: SLE, lichen planus, scleroderma, Sarcoidosis, necrobiosis lipoidica
Blistering disorders: cicatricial pemphigoid, porphyria cutanea tarda, epidormolysis bullosa
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