The classic anemia pattern: fatigue that sleep does not fix, looking pale (check your lower eyelids and nail beds), getting breathless on stairs that used to be easy, cold hands and feet, brittle nails, headaches, and - the weirdly specific one - craving ice. A cheap blood test (CBC, often $10 to $30 cash) confirms it.
The signs in detail: exhaustion out of proportion to your life, paleness (pull down your lower eyelid - the inner lid should be vivid red, not pale pink), shortness of breath or a racing heart on exertion, dizziness on standing, cold extremities, brittle or spoon-shaped nails, hair shedding, restless legs at night, and pica - craving ice, clay, or starch (strongly linked to iron deficiency). Who gets it most: menstruating women (heavy periods are the top cause in young women), pregnant people, vegetarians and vegans, frequent blood donors, endurance athletes, and people over 65. Why the cause matters as much as the count: iron deficiency is common and fixable - but in men and postmenopausal women it can signal slow internal bleeding that needs finding, and B12 deficiency causes its own version with numbness and balance problems. The test: a CBC, direct-to-consumer in most states for $10 to $30, usually with ferritin (your iron stores) added for the full picture. Emergencies skip this list: chest pain, trouble breathing, stroke signs, severe bleeding, or thoughts of self-harm mean call 911, or 988 for a mental health crisis in the US.
What to do
Common questions
Can I check myself for anemia at home?
The self-checks are suggestive, not diagnostic: pull down your lower eyelid (pale pink instead of vivid red is suggestive), look at nail beds and palms for paleness, and notice whether stairs wind you more than they should. But anemia is a lab value - hemoglobin - so the honest answer is the blood test: a CBC with ferritin runs $10 to $30 cash direct-to-consumer at Quest or Labcorp draw centers in most states, no doctor visit needed. If the result is low, that is when a clinician works out why.
What are the symptoms of low iron specifically?
Iron-deficiency anemia's signature cluster: deep fatigue, weakness, pale skin, cold hands and feet, brittle or ridged nails (in long cases, spoon-shaped), hair thinning, headaches, dizziness, restless legs, a sore or smooth tongue, and pica - cravings for ice, clay, dirt or starch. Ice-craving (pagophagia) is the famous one: it is so specific to iron deficiency that clinicians ask about it directly.
Is it anemia or am I just tired?
Fair question - fatigue is the least specific symptom in medicine, and sleep debt, stress, depression, thyroid problems, and diabetes all wear the same costume. The clues tilting toward anemia: fatigue plus paleness, breathlessness on exertion, racing heart, cold intolerance, and the ice-craving or restless-legs details. The cheap way to stop guessing: a CBC and a thyroid test together run under $60 cash direct - one blood draw answers both.
If it is anemia, what happens next?
Depends on the type, which is why 'just take iron' is not the whole answer. Iron deficiency: find the cause (heavy periods - treatable; diet; and in men or postmenopausal women, a search for slow GI bleeding that can matter far more than the anemia itself), then iron supplements for months - cheap, with vitamin C aiding absorption and constipation as the classic side effect. B12 deficiency: supplementation, sometimes injections. The CBC result is the start of the conversation, not the end. Emergencies skip this list: chest pain, trouble breathing, stroke signs, severe bleeding, or thoughts of self-harm mean call 911, or 988 for a mental health crisis in the US.