30 Subtle Signs of Serious Health Issues Hiding in Plain Sight

10. Redness on your legs or arms

If you spot a red area on your arm or leg, Kouri says you may want to visit your doctor. This sign could mean necrotizing fasciitis, a pretty rare bacterial infection that damages your outer layer, the fat beneath it, as well as the fascia overlying the muscle.

In the beginning, the area may look like a bruise or a small cut, but if it has no reason, call your doctor. Also, it’s important to know that several health conditions have the exact same signs as necrotizing fasciitis in its early stages, but they aren’t as deadly as this one.

11. Pigmentation of the palms

Addison’s disease is often associated with pigmentation of the palms. Also known as adrenal insufficiency, this disease is quite uncommon, and it shows up when your body is unable to produce enough of several hormones.

In other words, when your adrenal glands produce way too little cortisol and aldosterone, you may be diagnosed with Addison’s disease. It affects people of all ages and both sexes, and when left untreated (taking certain hormones to replace the missing ones is the treatment for Addison’s disease) is could be fatal.

People who have this condition may also experience extreme fatigue, hair loss, nausea, salt craving, weight loss, irritability, muscle pain, and depression.

12. Double vision

A board-certified oculoplastic surgeon in Beverly Hills, California named Christopher Zoumalan says that sudden double vision, as well as droopy eyelids, could be signs of a brain aneurysm. A brain aneurysm is basically a bulge in a blood vessel found, of course, in the brain. In some cases, the blood vessel can even leak or rupture, leading to uncontrolled bleeding in the brain, a.k.a. hemorrhagic stroke.

So, if your vision plays tricks on you, you should go for a medical check-up as soon as possible.