What Is Pityriasis Amiantacea? Do I Have It?

Answer: Pityriasis amiantacea begins with a swollen, discoloured and weeping scalp, which causes the hairs to stick to each other and to the scalp. Following the first stage, the scalp begins to produce a thick layer of silvery white or dull gray scales that pile up along the hair shafts.  Although the patches may often be found next to a hair part, the back of the head is a common site.  Rather than spreading to the rest of the scalp, a fine, branny scale appears over the unaffected area.

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Why Does Telogen Effluvium Happen?

Answer: As I have mentioned previously a stressful event like childbirth or surgery can interrupt and stop the growth of some of your hairs. It will mainly affect the older hairs which are coming to an end of their life cycle slightly earlier than usual  because of this condition. Normally the average life cycle of a coverage hair is about three years. This will increase the amount of hairs that you are due to shed and many more hairs than usual are then ready to fall out. It will take up to 3 months for the affected hairs to fall out after their growth has stopped. A short time later, new hairs then grow from the hair follicles as usual. In most cases your normal pattern and thickness of hair returns within a few months once these new hairs are fully established.

Persistent and excessive hair shedding may be caused by other factors such as an iron deficiency or an underactive thyroid gland. Your doctor can carry out a blood test to check for these if you have any other symptoms of these conditions.

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