1, prostatitis: it is the most common disease of male abdominal pain, which mostly occurs in young adults. Abdominal distension and pain, nocturia, frequent urination, urgency and dysuria are common at onset.
2, abdominal pain may be ureteritis, ureteral calculi, small abdominal pain is often accompanied by pain near the lumbar spine or waist pain, accompanied by paroxysmal colic and microscopic hematuria, ureteral tenderness.
3, acute appendicitis: commonly known as appendicitis, can occur at any age, but mostly occurs between the ages of 20-40. Most patients changed from upper abdominal pain to right lower abdominal pain, and the pain reached its peak in about 4 ~ 6 hours. At this point, coughing or moving your body may even aggravate the pain.
4. Acute cholecystitis: Pain usually occurs after meals or in the middle of the night, located in the right upper abdomen or upper abdomen. Sometimes the pain will spread to the right shoulder or scapula, accompanied by fever, vomiting and jaundice.
5, acute gastroenteritis: mostly food poisoning caused by eating unclean food, usually accompanied by severe vomiting, diarrhea, fever and other symptoms.