Unfortunately, due to respect for religion, the harms of the Hijab have not been discussed for the last 1400 years.

Only thanks to modern information technology, Hijabi women became able to discuss it on the internet and were able to find out the horrible harms of taking a Hijab. 

Hijab is UNNATURAL, and indeed Islam is absolutely not a religion of nature. 

 Table of Contents:

(1) Sweating, Fungi, Bacteria, Sticky hair, Bad Odour, Scratching, Dandruff, Candida:

  • The tight under-cap creates a hot, humid (sweat!) atmosphere which is a paradise for fungi and bacteria which is the death of hair follicles. Tons of hijabis suffer from seborrheic dermatitis or folliculitis and you can treat it as much as you want, when you give the culprits the perfect biotope to spread and multiply you will not get rid of it! (link).
  • On hot summer days, women who wear hijabs often experience a sticky feeling, followed by a bad odour. And this ordeal becomes exponentially high the longer one stays out of the home (link).
  • Whether you realise it or not, your head constantly sweats under your hijab. It leads to becoming warmer and warmer which is the perfect environment for germs and bacteria. Consequently, you keep scratching your head every now and then (link).
  • Human hair is also known as a storehouse for Staphylococcus aureus. From WHO data, this problem is one of the serious problems of concern. From several facts, it was found that they are seriously harmful to human health. Besides that, one other type of fungus that is often in the hair is Candida. The repetitive use of the Hijab can leave microorganisms and bacteria so that it can cause unwanted things and problems with hair, face, dandruff and other serious problems (link). 
  • A study in Indonesia showed that a very high number of women (i.e. 59.4%), who were wearing hijab, complained of hair problems, scalp, itching and allergies on the scalp and areas around the face (link).

(2)  Hair loss, Baldness, Receding Hairline, Thinning of Hairs due to Hijab alopecia

  •  Do you know what hijab alopecia is? Also known by the scientific term, traction alopecia, it’s caused by the intense friction from the hijab. The hairstyle underneath, combined with how the fabric is placed and rubs against your scalp every day over very prolonged periods, can traumatise your hair and damage the follicle, resulting in hair loss! (link).
  • We pushed out a survey to find out some of the issues you face regarding your hair, and the results were shocking: Out of the 67% of respondents who wear hijabs, a whopping 79% said they faced hair loss! (link).
  •  Many Hijabi women report having issues like forehead acne and thinning hair (link).
  • Receding Hairline: There are many reasons for a receding hairline. “One is traction alopecia which is what occurs when there is chronic friction or tension placed on hair roots for an extended period of time. If the hijab is pulling at the hair roots for years, this can result in the hair roots experiencing too much tension and dying,” (link)

There are so many girls and young women who, combined with hormonal issues, ended up with such horrible hairlines (even actual baldness) that they decided to wear hijab for aesthetic (not religious) purposes (i.e. they want to hide their forehead acne, thinning of hair, sticky hair etc. even from other women). 

Black women and women with curly hair face the most difficult situation. A  Hijabi girl wrote:

I hated wearing hijab, I have naturallly curly dry hair so wearing the hijab always made my scalp so itchy and I got scalp fungal infections, dandruff and flakes. Even with treatments it'd improve a little then become worse again because I was always wearing the hijab, it was obviously much worse in the summer. My parents forced me to wear it from the age of 7 years old and was never allowed to take it off unless I was just with my family. I hated doing sports whilst wearing it. 

(3) Stiffness and Pain in Neck and Head due to Hijab, and relief from it after removing Hijab

This study was done in Islamic Pakistan (link):

Objectives: To identify the frequency of neck pain associated with modern hijab in females of twin cities of Pakistan along with identification of risk factors.

Methodology: A total of 747 females participated from 4 different Universities of Rawalpindi and Islamabad (Pakistan) were included in the study. The study duration was 6 months from January to June 2017. Northwick questionnaire for neck pain was used to assess the neck pain intensity, symptoms, numbness, impact on daily activities and social life. 

Results: Out of 747 participants, 393(50.2%) females were covering their head with modern hijab. Type of head cover daily duration of hijab were significantly associated with stiffness or discomfort in neck, restriction with movement, pain and stiffness in head and neck region and relief from pain after removal of hijab (p<0.05). Intensity of pain, sleeping and pain, symptoms duration, carrying and reading or watching TV did not show any significant relationship with the type of head cover (p<0.05).

Another ex-Hijabi wrote about migraine:

 I would also like to add, as someone who wore Hijab from age 6 to 19, the tight undercap was a definitive trigger for migraines. Me and my mom are prone to migraines, and Hijab always makes it rlly bad, esp if I'm outside for hours, having to move around a lot. The pressure squeezing my head constantly is a recipe for a migraine that lasts for hours. I had frequent migraines in college when I was in college. My migraines decreased significantly in frequency and intensity when I took off Hijab, esp that feeling of suffocation and the psychological effect of feeling like u have to be meek, timid, and submissive.

(4) Vitamin D deficiency:

Vitamin D has a major impact on overall health, including the health of hair and hair follicles. 

Vitamin D is not produced under any cloth (like Hijab)

DIRECT sun rays upon the bare skin are needed in order to produce vitamin D. Therefore, our body produces no vitamin D behind any cloth (like Hijab) or behind any glass window. Even if we have the hottest sun in the Arab desert with over 50 degrees Celsius temperature, but no vitamin D is going to be produced under the Hijab (link). 

Thus, according to all scientific studies, Arab women suffer the highest rate of vitamin D deficiency in the world. 

But Muslim behaviour is unfortunate.

They deny any role of the Hijab in vitamin D deficiency and start bringing up lame excuses like vitamin D deficiency could also occur due to obesity, race or if you have some special diseases like malabsorption of nutrients from food etc.

But a scientific study, which has been done in Istanbul, Turkey, brought all their misinformation to an end. In that study, women of the same race, from the same region were studied. Half of them wore the Hijab, while half didn't. And the results showed that half of the women with Hijab had a huge vitamin D deficiency as compared to the half that didn't wear Hijab. The prevalence of vitamin D deficiencies was 55.0% for covered and 20.0% for uncovered women. Link to Istanbul Study.

You are hurting your baby girls by confining them into Hijab

Istanbul study (link) also found out that vitamin D deficiency is not only associated with clothing styles like Hijab but also with the age at which a female begins wearing Muslim-style clothing.

Your baby girl is especially in danger of vitamin D deficiency if she is confined into Hijab at an early age. 

If you are a Muslim mother (or father) of a baby girl, then fight back against your family and Islamic society for the sake of your baby, and don't let them push you to confine your baby into Hijab. Let your baby girl play freely and become healthy and happy. 

Vitamin D supplements are not as good as natural sun-rays

 Muslims come up with their next lame excuse, i.e. no problem with Hijab as women/girls could take the vitamin D supplements. 

But the scientific studies (link) show that Sunlight-exposure has a more positive effect on bone structure and homeostasis than vitamin D supplementation and control. The sun-exposed vitamin D deficient group showed a significant reduction of parathyroid hormone more than that in the vitamin D supplemented group vs. VDD controls (67.69 ± 13.18 and 78.93 ± 8.31 vs. 86.05 ± 9.67 pg/ml, respectively).

Allah is still guilty of vitamin D deficiency in the women of the last 1400 years and those poor women who cannot afford to buy supplements

Muslim excuse of "Vitamin D supplement" still does not make Allah free of being guilty. 

Vitamin D supplements started only a couple of decades ago, but what about the Muslim women of the last 1400 centuries, who suffered vitamin D deficiency (and thus a lot of diseases) due to the Hijab? Allah confined them into Hijab and also into the 4 walls of their houses. 

Therefore, if Allah really exists, then he is guilty. And if there exists no Allah, and all this revelation was a human drama of Muhammad himself, then Muhammad is guilty of all these sufferings of Muslim women. 

 In simple words, this vitamin D issue proves that there is no all-knowing and most Wise Allah present in the heavens above. And since Muhammad was neither all-knowing nor all-wise, thus his ignorance became the cause of vitamin D deficiency among billions of Muslim women of the last 14 centuries.