There are many different causes of hair loss from anemia, illnesses and infections, stress, crash dieting etc. but the most common hair loss problem is caused by genetics. There is a high possibility that you may have a family member (whether mother or father's side of the family) that have a hereditary type of hair loss which we all Androgenetic alopecia.
Both men and women can be affected by hair loss. We call them Male Pattern hair loss (MPHL) or Female Pattern hair loss (FPHL). The extent of the hair loss will depend on the extent of hair loss in the family. Some people have it earlier in life than others. Some have minimal thinning of hair whereas others have extensive hair loss and balding.
There are various treatments for hair loss but the standard treatments are still medical treatments using topical Minoxidil and oral Finasteride. Other supportive treatments include LLLT (low level laser treatments), herbal hair treatments, use of hair fibers that camouflage thinning hairs and wigs/weaves.
Hair transplant surgery is also one of the most important ways of restoring hair that has been lost. The latest technologies and techniques in hair transplantation are much refined from its humble beginnings of hair plugs and ugly "dolls head" results. Today's hair transplant surgery transfers your strong hairs individually in their normal hair follicle units onto your thinning/balding scalp with a technique that ensures results looking as natural as possible.
Aside from hair transplant surgery, several researches have proven the use of PRP injection (Platelet rich plasma) on patients with MPHL causing significant hair growth. This technique entails a simple blood extraction and taking a part of the blood (platelets) to be injected onto the scalp using the smallest needle. These platelets were found to contain Growth Factors that stimulate hair regrowth.