A lack of hydrochloric acid produced by the stomach is one of the most common age-related causes of a harmed digestive system.Among men and women, 27% experience a varying degree of achlorhydria. US researchers found that over 30% of women and men over the age of 60 have little to no acid secretion in the stomach. Additionally, 40% of postmenopausal women have shown to have no basal gastric acid secretion in the stomach, with 39.8% occurring in females 80 to 89 years old Autoimmune Disorders
Autoimmune disorders are also linked to advancing age, specifically autoimmune gastritis, which is when the body produces unwelcomed antibodies and causes inflammation of the stomach. Autoimmune disorders are also a cause for small bacterial growth in the bowel and a deficiency of Vitamin B-12. These have also proved to be factors of acid secretion in the stomach.Hypothyroidism: Thyroid hormones are a factor in the decreasing of hydrochloric acid in the stomach, thus hypothyroidism is associated with a greater risk of developing achlorhydria.Autoimmune conditions are often managed using various treatments; however, these treatments have no known effect on achlorhydria. Other
Other risk factors include, over the counter acid-blocking medications and antibiotics that may be used to block stomach acid. These medications are often taken by individuals for a longer than recommended period, even for years, despite causing adverse effects on stomach acid secretion.Stress has also been proven to be linked to symptoms associated with achlorhydria including constant belching, constipation, and abdominal pain.
Superficial pustular folliculitis is a superficial folliculitis with thin-walled pustules at the follicular openings. : 252

See also
Streptococcal intertrigo
List of cutaneous conditions

References
External links
Special types of folliculitis which should be differentiated from acne, US National Library of Medicine, Published 2017 Sep 27