What happened to the stomach pain after swimming What happened to the stomach pain after swimming

The weather is starting to warm up, and many people can't resist going swimming again. But sometimes it is found that swimming in the water will have the phenomenon of stomach pain, and the pain will

Sit-ups stomach pain

Sit-ups can serve to exercise the abdominal muscles, but there are many people who say that stomach pain occurs after sit-ups. What exactly is the cause of sit-ups tummy ache? What is the cause of sit