What cause a person to belch all the time?back to back?

i belch all day long.is it a health issue

Burping or belching is most often caused by swallowed air, usually while eating or drinking. Burping that occurs with other symptoms, such as pain, heartburn, nausea, a decreased appetite, or weight loss, may have a more serious cause.

Gallstones or another problem with the gallbladder may cause burping that is worse after eating and occurs with pain in the upper right abdomen that spreads to the back or shoulder.
Gastroesophageal reflux (GERD) may cause burping and heartburn that gets worse when you bend over or lie down.
An ulcer may cause persistent burping, indigestion, and pain that comes and goes in the upper abdomen.
Cancer of the stomach or esophagus may cause burping that occurs with nausea, decreased appetite, and persistent abdominal discomfort and fullness after eating.
Other conditions that may cause burping include:

Anxiety.
Slowed movement of food through the intestines (motility disorders).
Blocked passage of food through the stomach or intestines (bowel obstruction or gastric outlet obstruction).
A large collection of undigested material, such as food, hair, or swallowed objects in the stomach (gastric bezoar).

maybe too much carbonation and gassy foods

Maybe you are unhappy or have mixed emotions.

Swallowing air along with food will cause, as well as carbonated beverages. Eating too quickly also attributes to this problem too.

You are probably an air swallower! Chew your food thoroughly and eat slowly.Also stay away from carbonated drinks. I had the same problem years ago and was given the same advice I gave you. I worked for me!

I don't know if I am spelling this correctly but it is generally caused by what is known as a Hyatal hernia. Your esophagus where it enters the stomach is herniated. It can also cause a person to throw up because food cannot pass into the stomach.

I know because I have one and I belch sometimes for over an hour especially when driving for some reason.

go see a gastro-intestinal doctor and he can give you temporary relief.