Q: I am currently taking Avodart and have done so for around 8 months. Last night I had a significant loss of hair after taking a shower, nothing like I have ever seen before and found it very distressing. Can you tell me if this is hair loss or could it be something known as shedding and could you please tell me what is the difference between hair loss and hair shedding?

A: Hair loss is a very general term that can refer loss of hair for any reason. Genetic hair loss is caused by the effects of DHT on hair follicles that result in miniaturization -– i.e. a slowly progressive change in hair diameter that starts with visible thinning and that may gradually end in complete baldness. Hair shedding is more sudden where hair falls out due to a rapid shift of hair from its growth phase into the resting phase. The medical term for this is telogen effluvium. This process is usually reversible when the offending problem is stopped. It can be due to stress, medication, or other issues. You should see a dermatologist to figure out which process is going on. Dutasteride can cause some shedding when it first starts to work, but it would be unusual to do this after being on treatment for eight months.

Q: If you transplant grafts in between the thinned out areas, is there a risk of cutting previously normal roots, even if one is cautious?

A: Healthy hair can be temporarily shocked from a hair transplant and then shed (the process is called telogen effluvium) but it will not be permanently damaged.

Any healthy hair that is lost in this shedding process should re-grow.

Q: I have pretty significant hair loss. Should I take vitamins to help grow my hair back?

A: Although vitamin deficiencies are known to cause hair loss, there is little scientific evidence that shows that vitamin supplementation, in an otherwise healthy individual eating a well balanced diet, can prevent hair loss or improve the quality of one’s existing hair.

Q: Can stress produce diffuse unpatterned hair loss (DUPA), or was it bound to happen anyway? A: Both DPA (diffuse patterned hair loss) and DUPA (diffuse unpatterned hair loss) are genetic conditions, unrelated to stress and would have happened anyway. These types of hair loss are characterized by a high percentage of mininiaturized hair in [...]