Pneumonia, pleurisy, or collapsed lung: Conditions affecting the left lung can cause severe chest or side pain, especially when breathing deeply.
5. Reproductive and urinary causes
Kidney stones or infections: The left kidney or urinary tract may cause pain in the side or back.
Gynecological problems: In women, ovarian cysts or an ectopic pregnancy on the left side can cause abdominal or pelvic pain.
When to see a doctor
Seek urgent medical attention if the pain is:
Sudden, severe, or worsening.
Accompanied by chest pain, shortness of breath, dizziness, or sweating.
Associated with blood in the urine, fever, or unexplained weight loss.
Final considerations
Not all left-sided pain is serious, but some causes can be life-threatening. If in doubt, consult a doctor for an appropriate diagnosis and treatment plan. Prompt intervention can prevent complications and provide peace of mind.
Muscle strain or injury: Overexertion, heavy lifting, or poor posture can cause localized pain in the left shoulder, arm, back, or leg.
Nerve-related pain: Conditions such as sciatica or a compressed nerve in the spine can radiate pain down the left side.
2. Digestive and abdominal problems
Gas or indigestion: Trapped gas or acid reflux can cause discomfort on the left side of your abdomen.
Constipation or irritable bowel syndrome (IBS): This can cause cramping or pain.
Spleen problems: The spleen is located in the upper left side and can cause pain if enlarged or injured.
3. Heart problems
Heart attack or angina: Pain or pressure on the left side of the chest, sometimes radiating to the arm, jaw, or back, may indicate a heart problem. If this occurs, immediate medical attention is required.
4. Lung and respiratory problems
