Likely cause
Low hemoglobin (anemia) is not a disease itself—it is a sign that something else is causing it. Common causes include iron deficiency, vitamin B12 or folate deficiency, heavy menstrual bleeding, bleeding from the stomach or intestines, poor diet, chronic kidney disease, thyroid disorders, infections, or other long-term illnesses. The treatment depends on the cause, so the first step is to identify why your hemoglobin is low rather than trying to increase it blindly.
What to watch for
Watch for increasing tiredness, weakness, dizziness, shortness of breath, palpitations, pale skin, headaches, or fainting. Seek urgent medical care if you have chest pain, severe breathlessness, black stools, blood in your stools or urine, vomiting blood, or unusually heavy bleeding, as these may indicate significant blood loss or severe anemia.
What you can do
Please share your hemoglobin value and upload your CBC report if available. Your doctor may advise tests such as iron studies (especially serum ferritin), vitamin B12, folate, reticulocyte count, and sometimes kidney or thyroid tests based on your symptoms. If there is a history of heavy periods or bleeding from the stomach or intestines, that should be evaluated and treated. Once the cause is identified, the right treatment can help raise your hemoglobin effectively. Meanwhile, eat iron-rich foods and include a vitamin C source with meals.
When to see a doctor
Please see a doctor if your hemoglobin is below the normal range, if you have symptoms of anemia, or if this is the first time it has been detected. Seek emergency care immediately if you have severe breathlessness, chest pain, fainting, heavy bleeding, black stools, vomiting blood, or if your hemoglobin is very low (around 7 g/dL or less), as urgent treatment or a blood transfusion may sometimes be needed.
This is general information from a verified doctor and is not a diagnosis or a substitute for an in-person consultation. In an emergency, seek immediate medical care.
