A change in armpit color and excessive odor are a beauty and health problem that bothers many people. It can be caused not only by lack of cleanliness, but also by many physical reasons. The main reasons are:
Excessive use of chemicals: The alcohol and chemicals contained in some perfumes and deodorants used to change the smell of sweat irritate the skin and cause a dark color. This can clog the pores of the skin and increase the odor.
https://youtu.be/cYO1hnWIdWU
Wrong shaving methods: Shaving with a blade to remove armpit hair can cause friction on the skin. This causes the outer layer of the skin to thicken (Hyperkeratosis) and increase the black color. Ingrown hairs can cause pimples and scars.
Bacterial activity: Excessive sweating in the armpits creates a favorable environment for bacteria to grow. When sweat mixes with bacteria, a strong odor is produced. Wearing dirty clothes and sweat retention aggravate this problem.
Hormonal changes and diabetes: People with insulin resistance and diabetes often experience dark and thickened skin in the armpits and back of the neck (Acanthosis Nigricans). Hormonal problems such as PCOS can also cause this.
https://youtu.be/cYO1hnWIdWU
Accumulation of dead cells: We do not take care of the skin in the armpits as we do with our face. If dead cells, sweat, and dirt are not removed properly, it changes the skin color and causes discomfort.