Pain on the left side of the body can come from many different causes, ranging from minor muscle problems to conditions that need urgent attention. The meaning depends on where the pain is located, what it feels like, how long it lasts, and what other symptoms occur.
Common reasons for left-sided pain:
- Muscle strain or injury
- Overuse, lifting, exercise, or awkward movements can cause pain in the left shoulder, back, ribs, hip, or side.
- Pain is often worse with movement or pressing on the area.
- Nerve-related problems
- A pinched nerve in the neck or back can cause pain, tingling, numbness, or weakness that travels down an arm or leg.
- Digestive causes
- Gas, constipation, acid reflux, or stomach issues can cause discomfort on the left side of the abdomen.
- Persistent or severe abdominal pain should be checked.
- Kidney-related problems
- Kidney stones or infections may cause pain in the left flank or lower back, sometimes with fever, nausea, or changes in urination.
- Heart-related causes
- Left-sided chest pain, especially with pressure, tightness, shortness of breath, sweating, nausea, or pain spreading to the left arm, jaw, or back, may be a sign of a heart attack and requires emergency care.
- Joint or arthritis problems
- Wear-and-tear changes or inflammation can cause pain in areas such as the shoulder, hip, or knee.
Seek urgent medical help if left-sided pain is:
- Sudden, severe, or unexplained
- In the chest with breathing difficulty, sweating, fainting, or nausea
- Associated with face drooping, weakness, confusion, or trouble speaking
- Accompanied by fever, severe abdominal symptoms, or blood in urine/stool
A few details can help narrow down the cause:
- Where exactly is the pain? (chest, abdomen, back, arm, leg, or whole side)
- Is it sharp, burning, aching, or pressure-like?
- How long has it been happening?
