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How Long Does It Take For Hair To Grow Back? – Different Scenarios

how long does it take for hair to grow back - different scenarios

How Long does it take for hair to grow back? An average hair grows 1/2 inch a month? If you have a more rapid growth then it may grow 1 inch per month. Similarly, it will take almost 3 years for a shaved head to reach your mid-back or waist. It simply depends upon the rate of your growth

how long does it take for hair to grow back

Hair grows out of little pockets called follicles. According to the American Academy of Dermatology, there are about 5 million hair follicles on our body. And there are roughly 100,000 follicles on the scalp. Each hair grows in 3 stages:

  • ANAGEN: It is the Growing period of a hair follicle.
  • CATAGEN: It is the intermediate stage of hair growth.
  • TELOGEN: It is the final stage of hair growth where resting and shedding occurs.

In this article, you will get a proper guide on how long does it take for hair to grow back in different scenarios. So if you are interested to know about your case then read the article till the end.

How Long Does It Take For Hair To Grow Back – Different Scenarios?

Below we have discussed different scenarios in which we loose hair and the duration for them to grow back:

hair growth cycle

After A Bad Haircut?

Human hair grows about a half-inch on his head in a month, and 6 inches in one year. Male hair growing rate is faster than that of a female. If you had really long hair and you had a bob haircut, then it will take several years to grow the hair back where it was before. Besides, if you have shaved your head completely then it might take several months to reach a boy cut hairstyle.

How Long Does It Take For Hair To Grow Back After Shaving Or Waxing?

When you shave your hair you just cut the outer part of the hair. Hair will start growing right away and you might start seeing stubble within a day or two. When you wax your hair, however, the root is completely removed, you will able to see stubble after a week or two.

How Long Does It Take For Hair To Grow Back After Chemo?

Chemotherapy is used to cure cancer. During chemo, the patient loses all of their hair, not only from scalp but from the whole body. But soon after the completion of chemo hair will start growing back within a week or two. Because chemotherapy does not remove hair from follicles.

The hair may grow back as a soft fuzz, however, after a week normal hair will start growing back.  Moreover, after some time, the hair will start re-growing normally as 6 inches per year.

How Long Does It Take For Hair To Grow Back After Stress?

Stress can also cause hair loss if stays for too long. It is common for hair to grow back after 3 to 6 months after the cause has been dealt with. Sometimes, the rate of shedding slows down but does not stop entirely.

How Long Does It Take For Hair To Grow Back After Hair Loss?

There must be different causes of hair loss, and growing back of hair simply and purely depends on the cause of hair loss. For example, if a hair loss is caused by using some cheap hair products, then it can be easily fixed by stop using that product.

However, if it is caused by using some high potency medication then your hair will grow back on its own after stop taking those medicines. Moreover, if it is caused by the age factor then it is hard to recover.

How Long Does It Take For Hair To Grow Back After Hair Loss

Below we have discussed some of the causes of hair loss:


Alopecia areata is an autoimmune system, in which the immune system mistakenly attacks the hair follicle. Hair may fall in small patches from the scalp. But hair loss can also happen on other parts of the body such as eyebrows, eyelashes, arms, and legs.

This disorder is unpredictable, hair may start growing back at any time and it may start falling again. Currently, it is not possible to know when it may fall and when it may grow again.

Pattern Hair Loss

As we grow old, some follicles stop producing hair. This is referred to as hereditary hair loss, it is also known as androgenetic alopecia. This type of hair loss is usually permanent, which means that hair will not grow back again.

Follicles itself shrivels up and is incapable of regrowing hair. However, you can slow down the hair fall process with an oral treatment called finasteride (Propecia) or a topical treatment called minoxidil (Rogaine). Men hair loss rate is faster than that of the female. Men may get bald in the result of hair loss, but, when it comes to female, hair becomes rough and thin. It rarely reaches to baldness.

Scalp Psoriasis

Psoriasis is an autoimmune disease, which causes scaly red patches (plaque) on the scalp. It causes temporary hair loss. If you are scratching the scalp in order to relieve itching or removing the scales it may worsen the hair loss problem. Once you get proper treatment and stop scratching your scalp, your hair will start growing again.

Thyroid Disorder

Hair loss can also be caused due to thyroid disorder. The thyroid can be of two types:

  • Hyperthyroidism: It causes too much thyroid hormones
  • Hypothyroidism: It causes too little thyroid hormones

Once, you start taking proper medication for thyroid, your hair will start growing again.

Nutritional Deficiencies:

Not getting enough zinc or iron in the diet can also cause hair loss. Correcting the deficiency may cause regrowing of hair.

These were some of the scenarios of hair loss and growth cycle of hair in them. Most of the causes of hair loss are treatable. Only the hair loss caused by aging is permanent. However, it is recommended to take advice from a dermatologist if you are facing hair loss problem.

I hope reading this article solved many questions in your mind, and by now you must have found the reason for your hair loss, and you must be thinking about the treatment of your problem. You can visit our website “Divine Passionis” for more such informative articles. Any feedback and suggestions are warmly welcomed. Please share your precious thoughts in the comment section below. We are anxiously waiting for your responses.

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I graduated as an IT professional in 2014. Being a mother of two and working in the technological world, I begin observing the daily life problems and its solutions. Searching and knowing about behavioral changes and daily life tasks dragged my interest in blogging. If you are also interested in observing little things and learning then keep following Divine Passionis.

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