Hyperchlorhydria, sometimes called chlorhydria, sour stomach or acid stomach,  refers to the state in the stomach where gastric acid levels are higher than the reference range. The combining forms of the name (chlor- + hydr-), referring to chlorine and hydrogen, are the same as those in the name of hydrochloric acid, which is the active constituent of gastric acid. In humans, the normal pH is around 1 to 3, which varies throughout the day. The highest basal secretion levels are in the late evening (around 12 A.M. to 3 A.M.). Hyperchlorhydria is usually defined as having a pH less than 2. It has no negative consequences unless other conditions are also present such as gastroesophageal reflux disease (GERD).A cause for hyperchlorhydria is increased Gastrin production

See also
Achlorhydria
Hypochlorhydria


== References ==
The arthritis may be "additive" (more joints become inflamed in addition to the primarily affected one) or "migratory" (new joints become inflamed after the initially inflamed site has already improved).Reactive arthritis is an RF-seronegative, HLA-B27-linked arthritis often precipitated by genitourinary or gastrointestinal infections. The most common triggers are intestinal infections (with Salmonella, Shigella or Campylobacter) and sexually transmitted infections (with Chlamydia trachomatis); however, it also can happen after group A streptococcal infections.It most commonly strikes individuals aged 20–40 years of age, is more common in men than in women, and more common in white than in black people. This is owing to the high frequency of the HLA-B27 gene in the white population. It can occur in epidemic form. Patients with HIV have an increased risk of developing reactive arthritis as well. Numerous cases during World Wars I and II focused attention on the triad of arthritis, urethritis, and conjunctivitis (often with additional mucocutaneous lesions), which at that time was also referred to as Fiessenger-Leroy-Reiter syndrome. Signs and symptoms
Because common systems involved include the eye, the urinary system, and the hands and feet, one clinical mnemonic in reactive arthritis is "Cant see, cant pee, cant climb a tree." The classic triad consists of:
Conjunctivitis
Nongonococcal urethritis
Asymmetric oligoarthritis
Symptoms generally appear within 1–3 weeks but can range from 4 to 35 days from the onset of the inciting episode of the disease. The classical presentation of the syndrome starts with urinary symptoms such as burning pain on urination (dysuria) or an increased frequency of urination.