Hair Trichoscopy



What is Trichoscopy?

Trichoscopy is a Japanese technology. It is a method of computerized hair and scalp evaluation. It helps in diagnosing hair and scalp diseases. A device used for the procedure is called dermoscopy.

In trichoscopy, the hair and scalp analysis are done under magnification. This method of hair analysis helps in understanding the extent of damage to the hair. It also helps in monitoring the progress achieved with the treatment.

Hair Anatomy

Hair originates from follicles in the skin. The hair strands are made up of a protein called keratin, which also makes up our nails and the outer layer of skin. Hair grows from a follicle beneath the skin. It anchors each strand at its base as it rises to the surface.

Hair is one of the most intriguing, complicated structures in our bodies. Did you know that hair has several different parts? And each plays a role in helping your hair look its best.



Shaft (above)

The shaft is the entire visible portion of the hair, which can be long or short, thick, or thin, curly, or straight. Hair shafts grow from a follicle, which is a small opening in the skin.

Cuticle (below)

The cuticle is the outer layer of the hair, which lies just under the skin's surface. It protects the inner layers of the hair and helps keep moisture locked inside.

Medulla (canter)

The medulla is found only in thicker hairs. It's a spongy canter that we can be seen when light shines through thick strands of hair. Cortex (left) - The cortex lies just under the cuticle and contains pigment cells and keratin, a natural protein that makes up your hair. This layer determines your hair colour and texture.

Stages of hair growth (Life cycle of Hair Follicle)

  • Anagen (above) - Anagen is the active growing phase of hair. During this time, each strand of hair grows about one centimeter per month. The longer you grow your hair, the longer it will stay in this stage -- up to seven years!
  • Catagen (below) - Catagen is a transitional period during which growth begins to slow.
  • Telogen (canter) - Telogen is the resting phase of hair growth. It begins when the hair follicle shrinks, halting hair production. At any given time, about 10 percent of your hair is in this phase. Most people lose anywhere from 50 to 100 scalp hairs per day because of this normal process. Hair stays in this stage for two to four months.
  • Exogen (left) - Exogen is when the old hair falls out and causes shedding, which can occur three to four months after a strand of hair reaches its peak length at the end of the telogen. This part of the cycle accounts for 50 percent of a person's daily shed hairs.

Fun fact

During the anagen phase, your hair can grow half an inch per month. That means your ponytail might only be 5 inches long at the beginning of this stage and up to 12 inches when it reaches its entire length.