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One nice explanation from Yahoo answers.

Cancer is a disease in which certain cells in the body mutate and begin to grow uncontrollably. Most normal cells have a 'trigger' or 'off switch' to tell them to stop growing at a certain point . . cancer cells lose that ability.

Some types of chemotherapy were created to target a cancer cells uncontrolled 'growth' . . the idea is to kill the cancer cells by using a medication that will stop it from 'growing'. The medication will kill all cells in the human body that 'grow' . . and hair cells grow . . the medication cannot tell the difference between a cancer cell and a hair cell . . so it kills them both. Thus a cancer patient will lose their hair. Once the chemotherapy is stopped or treatment is done than the hair will grow back.

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Wiki User

11y ago
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Wiki User

14y ago

Cancer does not cause baldness!!! When you are affected with cancer you have to have many different treatments, one includes something called chemotherapy which involves administering drugs which cause the dropping out of hair.. that is why even before doing this, the doctor shaves your head. So as you can see, it is not an effect of cancer it is something that is involved in treating it.

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Wiki User

12y ago

It isn't the cancer that makes people go bald it is the cemotherapy which helps stop it, but is literally poision being ejected into the persons body, it helps them but makes them extremely sick.

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Wiki User

12y ago

It is not the cancer that causes hair loss; it is the treatment received called chemotherapy. This type of medicine targets rapidly-dividing cells, primarily the cancerous cells, but this includes the cells in the roots of your hair. This loss is usally temporary however, and you may be able to re-grow your hair 3-10 months after your treatment.

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14y ago

no they don't lose their hair they only lose it when they do chemo.

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Q: Why do people lose their hair if they have cancer?
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Related questions

Why do some people lose their hair?

Some people lose their hair cause they are either just getting old or they have cancer.


How a cancer victim look like?

some people who have lung cancer can lose their hair. the way they lose it is that it falls out. and they either have to wear a wig/hats.


Why do people have hair and some don't?

Some people dont have hair either because they were born that way or do to hair cancer,or breast cancer,or also you can lose your hair from ink piosining.Some others have hair because...Well we were born that way


What were the ill effects of the atomic bomb?

Radiation sickness makes people to lose the hair and could cancer.


If you have testicular cancer do you lose your pubic hair?

No


How do people lose hair?

There many ways in which a person may lose their hair. Drugs that treat cancer, such as chemotherapy is a big reason why many lose their hair. Other factors include pattern baldness, shaving one's head, alopecia, trichtillomania, and brain surgery.


How do people lose their hair?

There many ways in which a person may lose their hair. Drugs that treat cancer, such as chemotherapy is a big reason why many lose their hair. Other factors include pattern baldness, shaving one's head, alopecia, trichtillomania, and brain surgery.


Do bald people have nose hairs?

The average bald person has nose hair, some, for example cancer patients, lose most body hair due to chemotherapy


Will you lose your armpit hair when you take the medicine for cancer?

i think not because my college teacher had cancer and believe me she didn't


How much hair falls out if you have cancer?

Cancer is not the cause of hair loss, it is actually a cure called Chemotherapy. Generally, when you undergo Chemotherapy treatment, you lose all hair on your body, including eyelash's and eyebrows.


What happens if you lose hair being a teen?

It might mean that you are having cancer or something


Will your hair fall out because of hats?

I doubt that that would happen. People wear hats all the time, and there is no hair loss. Don't worry about it. If you saw a person with some hair and it was falling out they could have had cancer. Plus, you lose a thousand hairs a day without even touching it. So yes you lose hair, but not just because of hats though.