It is a usually inherited or caused by male hormonal influences, & affects mostly males. The majority of men in their 20s would experience hair loss & it worsens when they reach 40s. Hair loss is normally a slow process, the hairline on the forehead recedes & a typical "M"-shaped is formed. Similarly, the hair on the top centre of the head will start to deplete slowly, eventually reaching baldness stage. In the end, only the sides & the back of the head are covered with hair. 

   
Females may also experience Androgenic Alopecia. However, the likelihood, of females having this condition is much lower as compared to males. Furthermore, the hair loss pattern for females is different, where hair begins to fall off from the top of the head. 

Androgenic Alopecia that occurs in males is related to Dihydrotesterone, a type of male hormones. These suffers either have an increased cell production of Dihydrotesterone, or have hair follicles that are sensitive to the fluctuation of the Dihydrotestrone levels. However, sufferers do not necessarily have a higher Dihydrotesterone content in their blood stream than non-sufferers.


Treatment for Androgenetic Alopecia

External Medication-Minoxidil 
Originally, Minoxidil was used as a form of medication to control blood pressure. In general, Minoxidil is to be used for an extended period of time, say about three months, before results can be seen. This external medication has its side effects too. Minoxidil can lead to redden & swollen scalp when used on patients who are sensitive to the substance. In more serious cases, headaches & even low blood pressure may result. 

Internal Medication-Finasteride 
Finasteride was initially meant for treating male patients with oversized forefront line. The patients realized that hair growth increases after taking Finasteride. It is more than 3 months for Finasteride to take effect. In addition, prolonged usage of the medication is required in order to maintain the result. Finasteride users may suffer from impeded sexual function. This medication is not suitable for women as there is a risk of impaired foetal development.

Alternative solutions

If the above treatments are not effective, sufferers can opt for hair implant. This is done by removing hair from the back of the head & directly implanting them.