What can cause pimples in back of neck?

* Hormonal changes: Pimples in the back of the neck are often caused by hormonal changes, such as those that occur during puberty or pregnancy. These changes can lead to an increase in the production of sebum, which can clog pores and cause pimples.

* Excessive sweating: Sweating can also cause pimples in the back of the neck, especially if you don't shower or bathe regularly. Sweat can clog pores and create a breeding ground for bacteria, which can lead to the development of pimples.

* Poor hygiene: Not washing your neck properly can also lead to pimples. Dirt, oil, and bacteria can build up on the skin and clog pores, which can cause pimples to form.

* Genetics: Some people are simply more prone to developing pimples than others. If you have a family history of acne, you may be more likely to get pimples in the back of your neck.

* Certain medications: Some medications, such as birth control pills and steroids, can cause pimples as a side effect.

* Tight clothing: Tight clothing can rub against the skin and irritate it, which can lead to the development of pimples.

* Stress: Stress can also contribute to the development of pimples. When you're stressed, your body produces more cortisol, which can increase sebum production and lead to clogged pores.