The Chemotherapy & Radiation Affect To Hair Loss. How To Prevent?


It is the delivery of drugs to treat disease and targets all rapidly dividing cells, healthy cells as well as cancer cells.

Hair follicles, the structures in the skin filled with tiny blood vessels that make hair, are some of the fastest-growing cells in the body, normal it divide every 23 to 72 hours. But as the chemo does its work against cancer cells, these drugs may not be able to discern the two, it also attack those hair follicles and causes hair loss. The difference is that the hair follicles will repair themselves, making these alopecia temporary.

You may start to see your hair thin or fall out 1 to 4 weeks after your first chemotherapy treatment. It could fall out very quickly in clumps or gradually and you may first notice hair on your pillow in the morning or see it when you shower or brush your hair. The extent of your hair thinning or loss will depend on the type, dose, timing of your treatments. Generally, you can lose about 50 percent of your hair.

The Chemotherapy & Radiation Affect To Hair Fall. How To Prevent?
  • Some chemotherapy are given weekly in small doses, this minimizes hair loss.
    Other treatments are scheduled every three to four weeks in higher doses, and may be more likely to cause more alopecia.
  • Some chemotherapy are more likely than others to cause hair loss, and different doses can cause anything from a mere thinning to complete baldness.
  • Some chemotherapy drugs affect only the hair on your head.
    Others cause the loss of eyebrows and eyelashes, pubic hair, and hair on your legs, arms, or underarms.

Hair regrowth after chemotherapy usually begins about one to three months after chemotherapy ends. In general, you can expect to regrow a full head of hair six months to a year. Here is a typical timetable :

10 - 14 Days After Start Chemotherapy : Hair begins falling out, usually disappears within one week.
2 - 3 Weeks After Chemotherapy Ends : Soft fuzz.
1 Month After : Real hair starts to grow at its normal rate.
2 Months After : An inch of hair, you can expect about a quarter inch of growth each month.
6 - 12 Months : A full head of hair, though your hair may temporarily be a different shade or texture.

Generally, the hair most likely to fall out is the hair that tends to grow back the fastest. The hair on the top of your head grows faster than your eyebrows or eyelashes. Very, very rarely, permanent baldness occurs after many years of strong chemotherapy. Hair follicles get burned out and shut down, so there is no new growth.

The new hair may look or feel a little different, sometimes hair may grow back thinner, other times hair grows back coarser. The color of regrown hair may also be different from the hair that original hair. As your hair grows, use a gentle shampoo and conditioner. For the first six months, you may want to hold off on having chemical processes like perms or hair coloring because your hair is still fragile and scalp is very sensitive. Using a hair dryer or curling / straightening iron may also cause damage.


It is the use of high energy ionizing radiation to inhibit the division and growth of cells.

Radiation therapy also attacks quickly growing cells in your body, but unlike chemotherapy, it affects only the specific area where treatment is concentrated. If you have radiation to your head, you'll likely lose the hair on your head.

You may start to see your hair thin or fall out 4 weeks after you receive radiation therapy. Different types of radiation and different doses will have different effects on your hair and higher doses can cause permanent hair loss. Hair typically grows back in the area of radiation therapy after several months, although it may be thinner or of a different texture.

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