Whether you are exercising or for more practical reasons, climbing stairs is a good cardiovascular activity. It is ideal for adjusting the leg muscles and filling your heart. Some people may find that they have a headache after climbing the stairs. In most cases, this is not a problem. After stopping the activity, the headache usually disappears quickly. However, in some cases it may indicate a potential situation. The only way to make sure you have a headache after climbing the stairs is to see a doctor.

Hypotension
When the blood flow is stressed Your blood pressure is considered to be low blood pressure between you and your arterial wall heartbeat below normal. According to Stewart Tepper, author of the Cleveland Clinic Headache Treatment Handbook, when you stand or climb stairs, your blood pressure rises, putting more blood into your body. If your blood pressure is low, your body can't draw enough blood to adjust when you climb the stairs. This can cause you a headache because your brain doesn't have enough blood.
Anemia
Anemia is characterized by a decrease in the number of red blood cells. This can also happen if your red blood cells are larger or smaller than normal. Because red blood cells carry oxygen in your body, if you have anemia, your brain and other organs won't get enough oxygen. When you are climbing the stairs, brain and other activities, you need more oxygen to play your own organs. When your body can't meet this requirement, it usually leads to the so-called "severe headache."
Blood sugar
Low blood sugar, also known as hypoglycemia, can cause headaches after climbing stairs. Blood sugar is your main source of fuel. This is especially important for your brain. According to Joseph Kandel, author of The Headache Treatment, you get headaches and dizziness when your blood sugar drops too low and climbs up the stairs. Kandel explains that this type of headache fades when you eat something that will return your blood sugar to its normal range.
Notes
Hypotension, anemia and hypoglycemia are the most common causes. experienceA headache problem climbs the stairs. However, other causes may include poor circulation and dehydration. Your doctor will usually detail your experience to help determine the cause. Testing your blood sugar levels, red blood cell counts and circulation can help rule out potential conditions. Treatment depends on the cause, but in general, the prognosis of appropriate treatment is good.