Pain on the left side of the body in women: what is on that side

Pain on the left side of the body in women can arise from many different organs, muscles or nerves. Understanding what lies beneath that discomfort helps you take appropriate action—whether it’s simple rest, home care or seeking medical attention. Below is an overview of possible causes by area, what you might expect and when to speak to a doctor.

1. Chest and Upper Torso

Pain here may involve the lungs, heart, muscles or ribs.

• Cardiac causes

  • Angina or heart attack can present as a squeezing or pressure-like pain radiating to the left arm, jaw or back.
  • Often comes with sweating, nausea or shortness of breath.

• Lung issues

  • Pleurisy (inflammation of the lung lining) causes sharp, stabbing pain worsened by breathing or coughing.
  • Pneumonia may include fever, chills and a cough.

• Musculoskeletal causes

  • Costochondritis (rib-cartilage inflammation) feels like tenderness along the rib cage.
  • Muscle strain from heavy lifting or exercise leads to localized soreness.

• When to seek help

  • Sudden, intense chest pain
  • Pain with sweating, nausea, lightheadedness
  • Difficulty breathing

2. Abdomen

The left upper and lower abdomen houses parts of your stomach, spleen, pancreas, colon and reproductive organs.

• Upper abdomen

  • Gastritis or ulcers cause burning pain, often better or worse with eating.
  • Pancreatitis leads to a deep, constant ache, sometimes radiating to the back, often after heavy meals or alcohol.
  • Splenic issues (enlarged or ruptured spleen) can cause sharp pain after trauma or infection.

• Lower abdomen and pelvis

  • Diverticulitis (inflamed pouches in the colon) shows as steady pain, fever and changes in bowel habits.
  • Kidney stones provoke severe, cramping pain that comes in waves and may radiate toward the groin.
  • Urinary tract infection may cause pain, urgency, burning during urination and sometimes fever.
  • Gynecological causes:
    • Ovarian cysts or torsion can cause sudden, sharp or dull ache on one side.
    • Endometriosis often causes crampy pain around menstruation.
    • Ectopic pregnancy (rare but serious) may present as stabbing pain and vaginal bleeding—seek emergency care.

• When to seek help

  • Severe, unrelenting abdominal pain
  • High fever, vomiting, blood in stool or urine
  • Signs of dehydration or inability to eat/drink

3. Back and Flank

Pain between the ribs and hip can come from muscles, kidneys or spinal issues.

• Muscular strain

  • Overuse, lifting or poor posture leads to aching or sharp pain that eases with rest and heat.

• Kidney problems

  • Kidney stones cause colicky pain, often radiating from flank toward groin.
  • Kidney infection (pyelonephritis) presents as constant ache, fever, chills and urinary symptoms.

• Spinal causes

  • Herniated disc or sciatica may refer pain down the leg, sometimes with numbness or weakness.
  • Osteoarthritis of the spine leads to stiffness, especially in the morning.

• When to seek help

  • Intense flank pain with fever or urinary changes
  • Sudden weakness or numbness in a leg
  • Loss of bladder or bowel control

4. Left Arm and Shoulder

Pain here often relates to the heart, nerves or overuse.

• Cardiac referral

  • Heart attack pain can radiate down the left arm, especially the inner side, accompanied by chest discomfort.

• Nerve compression

  • Cervical radiculopathy (pinched nerve in neck) causes shooting pain, tingling or weakness in the arm.

• Musculoskeletal

  • Rotator cuff injuries, tendonitis or bursitis cause dull ache, worsened by lifting the arm.
  • Repetitive strain (typing, knitting, carrying) leads to tenderness in forearm muscles.

• When to seek help

  • Arm pain with chest pressure, sweating or nausea
  • Sudden onset of arm weakness or numbness
  • Severe pain unrelieved by rest or ice

5. Left Leg, Hip and Groin

Pain below the waist may involve joints, muscles, nerves or blood vessels.

• Hip joint issues

  • Osteoarthritis causes deep, aching pain in the groin or thigh, worse with activity.
  • Bursitis leads to sharp pain on the outside of the hip, aggravated by pressure or movement.

• Muscle and tendon injuries

  • Strains or tears in the hamstring, adductor or quadriceps present with sharp pain during activity.
  • Iliotibial band syndrome causes lateral knee or thigh pain in runners.

• Nerve problems

  • Sciatica refers to low back or buttock pain shooting down the back of the leg.
  • Meralgia paresthetica leads to burning or tingling on the outer thigh.

• Vascular causes

  • Deep vein thrombosis (DVT) can cause calf or thigh pain, swelling, redness and warmth—seek urgent care if suspected.

• When to seek help

  • Swelling, redness or tenderness in the calf
  • Inability to bear weight on the leg
  • Signs of infection (fever, redness)

6. General Considerations

• Stress and anxiety can manifest as muscle tension or focused pain in one side of the body.
• Hormonal changes (such as during menstruation or menopause) may heighten sensitivity to pain.
• Autoimmune conditions like lupus can cause joint or muscle pain that shifts location.

Self-Care and When to Seek Help

Most mild to moderate pain improves with:

• Rest, ice or heat therapy
• Over-the-counter pain relievers (ibuprofen, acetaminophen)
• Gentle stretching and posture correction
• Staying hydrated and maintaining a balanced diet

However, you should get medical advice if you experience:

• Sudden, severe or worsening pain
• Associated symptoms such as fever, vomiting, chest tightness, shortness of breath, sudden weakness or loss of sensation
• Pain that interferes with daily activities or sleep

You might also consider a free, online symptom check, using the doctor approved Ubie Symptom Checker to help you better understand your symptoms and decide on next steps.

Always trust your instincts—if something feels seriously wrong, do not delay. Speak to a doctor about anything that could be life threatening or requires urgent evaluation. A healthcare professional can perform a full exam, order tests and guide you toward the right treatment. Your well-being matters, and timely care can make all the difference.