おなかが痛い

おなかってどこ？

なんとなく印象で、臍の周り70%,臍の下20%,右下腹部10％, みぞおち10％, 右肋骨弓下5%, その他5%くらいだろうか？

おなかが痛いときはなぜか悲しい気持ちになる。いや、逆かもしれない。悲しい気持ちの時におなかが痛くなる。一般的には胃や腸が引き伸ばされたり、急に収縮することで痛みを感じるところから始まる。これらの刺激を胃腸に分泌する神経末端が感知し、神経伝達物質を放出する。これらの情報は交感神経を通じて脊髄に痛み感覚として、迷走神経を介して、嘔気、不快の情報として脳に伝わる、ここで初めて痛みを自覚する。

よく自覚する痛みとして、

臍の周りが痛い

へその周囲の痛みは、ほとんどが腸、特に小腸が原因の痛みが多い。ウイルス性腸炎や細菌性の感染性腸炎、さらに虫垂炎など腹腔内の急な炎症による疾患の初期などでもみられる。高まった腸内の圧力を逃がすことができれば、少し楽になるはずで,例えばげっぷ、放屁、排便。嘔吐、下痢も症状をやわらげるために起きていることが多い。

もちろん、すでになにかに感染してしまっていたら、仕方がない。お早目に病院へ。

Where is the “abdomen”?

Roughly speaking, the distribution is as follows: around the navel (70%), below the navel (20%), the lower right abdomen (10%), the pit of the stomach (10%), under the right ribs (5%), and other areas (5%).

For some reason,

having an abdominal pain makes one feel sad. Or perhaps it is the other way around: feeling sad causes an abdominal pain. Generally, the pain begins when the stomach or intestines are stretched or contract suddenly. Nerve endings in the gastrointestinal tract detect these stimuli and release neurotransmitters. This information is transmitted to the brain—pain signals travel via the sympathetic nervous system to the spinal cord, while signals regarding nausea and discomfort travel via the vagus nerve—and it is only then that we consciously perceive the pain.

Commonly experienced pains include:

Pain around the navel

Pain around the navel is most often caused by the intestines, particularly the small intestine. It is seen in conditions such as viral or bacterial gastroenteritis, as well as in the early stages of acute intra-abdominal inflammation like appendicitis.

If the elevated pressure inside the intestines can be relieved, the pain should ease somewhat—

for instance, through belching, passing gas, or having a bowel movement. Vomiting and diarrhea also often occur as the body’s way of alleviating symptoms.

Of course, if you have already contracted an infection, there is little to be done about it. Please see a doctor promptly.