Tired all the time? Check iron before you blame your hormones.

Periods often get heavier before they stop

Cycles in perimenopause do not simply taper off. Many become heavier and less predictable, often because ovulation is becoming irregular and progesterone is not rising to balance estradiol. Heavier bleeding month after month draws down iron stores.

How common this is

In women with heavy menstrual bleeding, iron deficiency or iron deficiency anemia has been reported in as many as 63 percent. In broader samples, around 45 percent of women had ferritin below 30 micrograms per litre. Fatigue is one of the main reported symptoms, along with headaches and reduced exercise tolerance.

Why a normal blood count is not the all clear

Ferritin reflects stored iron and drops first. Hemoglobin holds up until stores are largely gone. So you can be genuinely iron deficient, and genuinely exhausted by it, with a complete blood count that reads normal. If nobody ordered a ferritin, nobody looked.

• Ferritin for stored iron, the marker that moves first
• Serum iron and total iron-binding capacity for what is circulating and how hard the body is working to hold it
• Hemoglobin, hematocrit and the full blood count for whether it has progressed to anemia

It is also worth saying out loud

Heavy bleeding gets normalised, and it often goes unmentioned in appointments. It is worth raising, both because it is treatable and because it changes what your fatigue most likely is.

How Regener8 approaches it

Ferritin, serum iron, total iron-binding capacity and a complete blood count are all on the standard panel, drawn alongside your hormones and thyroid. Your clinician reads them together on a 30 minute visit, so fatigue gets attributed to what is actually causing it.