April 11th 2025

How much does hair grow in a month?

One of the most frequent doubts about hair growth is, precisely, how long does it take for hair to grow in a given period of time. Did you know that not everyone has the same hair growth? In this article we are going to talk specifically about how much hair grows in a month: keep reading and find out.

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Hair in growth phase

Factors that influence hair growth

Hair growth is not the same for everyone. It depends on several factors that can vary throughout life, such as: 

  • Hormonal factors: The endocrine system plays a fundamental role in the hair cycle. Hormonal changes such as those that occur during puberty, pregnancy or menopause can significantly alter the growth rate and even cause hair loss. 
  • Age: The rate of hair growth decreases with age. During youth, hair tends to grow faster than in adulthood or old age. 
  • Sex: Hair growth can differ between men and women.

Does it grow the same in men and women?

Hair does not grow exactly the same in men and women. Although the biological process is similar, there are notable differences in the rates and patterns of hair growth. 

Hair growth in men

In men, hair grows an average of 1,5 centimeters per monthHowever, this rate can be reduced due to hormonal and genetic factors, which can even cause irreversible hair loss. In most cases this is due to the development of androgenic alopecia. When this occurs, the only way to see ourselves with hair again in the areas that stopped growing naturally is with the FUE hair transplant

Hair growth in women

Although women's hair also grows about 1,5 centimeters per month on average, in some cases it can be greater due to hormonal factors such as estrogen that promotes more active hair growth. However, and as also occurs in men, a hormonal imbalance can cause the onset of female androgenic alopecia, which in turn generates irreversible hair loss. promote hair growth In these cases there are options such as hair graft

The phases of hair growth

Hair growth is not a continuous process, but the hair follicle goes through different stages that determine its development. The main phases are: 

Anagen phase

The anagen phase of hair corresponds to the stage of active growth. It can last between 2 and 7 years depending on genetics. During this time the hair follicle is fully active and produces hair fiber. Good nutrition and the absence of stress, among other things, prolong this stage. 

Catagen phase

During the catagen phase, the hair follicle enters a transitional state that usually lasts between 2 and 3 weeks. Here, the follicle stops actively producing hair and prepares to move on to the next phase of its hair cycle. During this period, hair usually becomes weaker and more brittle. 

Telogen phase

The telogen phase is also known as the resting phase. It lasts between 3 and 4 months, and during this period the hair sheds and falls out, giving rise to a new hair growth cycle. Under normal conditions, approximately 10-15% of the hair is in this phase. 

Dr. Caggiano from Hospital Capilar

Do you want to promote hair growth and stop hair loss?

En Hospital Capilar We are experts in hair medicine and offer effective hair treatments to stop hair loss and promote hair growth. Request your free medical assessment and put yourself in the hands of professionals. 

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