While it’s not always possible to predict a stroke a month in advance, there are some early warning signs to look out for. These may include sudden dizziness, a severe headache, or vision problems. In many cases, people who later experience a stroke may have had a transient ischemic attack (TIA)—also known as a mini-stroke—within the preceding 90 days. TIA symptoms often involve temporary loss of balance and changes in alertness.

Can There Be Warning Signs One Month Before a Stroke?

A transient ischemic attack (TIA) occurs when blood flow to the brain is briefly interrupted. Though it doesn't cause permanent damage, it’s considered a major warning sign that a full stroke could happen soon. About 1 in 5 people who experience a TIA will have a stroke within the next three months.

The symptoms of a TIA are the same as those of a stroke and may include:

  • Changes in alertness

  • Muscle weakness or numbness

  • Loss of balance or coordination

Other early warning signs of a stroke may include sudden:

  • Confusion or difficulty understanding speech

  • Trouble walking or maintaining balance

  • Dizziness or lack of coordination

  • Severe headache with no clear cause

  • Vision problems in one or both eyes

  • Numbness or weakness in the legs, especially on one side

Act F.A.S.T.

The F.A.S.T. acronym is a useful tool to help identify stroke symptoms and respond quickly:

  • Face: Check for drooping or numbness on one side of the face.

  • Arm: Look for weakness or numbness in one arm.

  • Speech: Listen for slurred or strange speech.

  • Time: If you see any of these signs, call 911 immediately.

How To Prepare

Strokes can happen to anyone, regardless of age or health status. Being informed and prepared can make a big difference. Consider:

  • Keeping a list of the closest hospitals with 24-hour stroke care

  • Documenting all medications you're taking and any drug allergies

  • Understanding your personal stroke risk factors

Common risk factors include:

  • Older age

  • Diabetes

  • Family history of stroke

  • Heart disease

  • High blood pressure or high cholesterol

  • Smoking, physical inactivity, and excessive alcohol use

  • Obesity

  • Previous strokes or TIAs

  • Certain health conditions such as sickle cell disease

  • Gender (stroke risk may differ between men and women)

What To Do If You Think You're Having a Stroke

If you suspect you’re having a stroke, call emergency services right away. Do not attempt to drive yourself or rely on someone else to take you to the hospital. An ambulance team can begin treatment en route and ensure you’re taken to a specialized stroke center if needed.

If a healthcare provider dismisses your symptoms as something else—such as an ear infection or migraine—don’t hesitate to ask for clarification. Strokes, particularly those affecting the posterior cerebral artery, can mimic other conditions and are sometimes misdiagnosed.

You can ask, "Why do you think it's not a stroke?" If the explanation is unclear or unsatisfactory, consider seeking a second opinion.

A Quick Review

Early warning signs of a stroke may include weakness or numbness in the face, arms, or legs, confusion, dizziness, and problems with speech or vision. A TIA may also precede a full stroke, often within three months.

Acting quickly is critical. Know your risk factors, locate the nearest stroke center, and keep your medical information ready to help healthcare providers respond effectively in an emergency.