Let's see if we can figure out what's causing your symptoms.
Select additional symptoms and we'll narrow your results.

What causes anemia and loss of appetite? 16 possible conditions

We could not identify "pale complexion" as a symptom in Symptom Search.
Also try this:
  • enter the first few letters of the symptom in the Enter a symptom box (above)
  • select a symptom from the Pick from a List option

See a list of possible causes in order from the most common to the least.



The thyroid gland produces a hormone that controls how your cells use energy (metabolize). Hypothyroidism occurs when the body doesn't produce enough. Untreated, it can cause complications like obesity and heart disease.

Read more »


Iron Deficiency Anemia

Iron-deficiency anemia is the most common type of anemia, which occurs when the body does not have enough of the mineral iron. The body needs iron to produce hemoglobin, which carries oxygen to the body's tissues...

Read more »


Celiac Disease (Gluten Intolerance)

Celiac disease is a digestive disorder caused by an immune reaction to gluten. Symptoms vary but can include arthritis, fatigue, and abdominal symptoms.

Read more »


Hookworm Infections

Hookworms are parasites that affect the small intestine and lungs. The first sign of infection is usually a rash where the parasite entered the skin, followed by diarrhea.

Read more »



Thalassemia is an inherited blood disorder that results in excessive destruction of red blood cells (anemia). Symptoms depend on its severity, and can range from minor anemia to enlargement of organs or fetal death.

Read more »


Ulcerative Colitis

In UC, the lining of the large intestine and the rectum become inflamed. This produces tiny sores or ulcers on the lining of the colon, often accompanied by diarrhea and cramping.

Read more »


Megaloblastic Anemia

Megaloblastic anemia is a blood disorder marked by the appearance of very large red blood cells that crowd out healthy cells, causing anemia. Numbness or tingling in hands and feet is common sign.

Read more »


Pernicious Anemia

Pernicious anemia (PA) is an autoimmune disorder in which the body fails to make enough healthy red blood cells (RBCs), resulting in vitamin B-12 deficiency. Most people experience a burning or sore tongue.

Read more »



Leukemia is a cancer of the blood cells. Excessive sweating at night, constant fatigue, weight loss, bone pain, and easy bleeding or bruising are all signs of this disease.

Read more »


E. coli Infection

E. coli is a type of bacteria normally found in intestines. But certain kinds of E. coli can cause infection and severe symptoms like diarrhea and dehydration.

Read more »



Sarcoidosis is an inflammatory disease that causes granulomas, which are clumps of immune cells, to form in different organs. A skin rash is one symptom of sarcoidosis of the skin.

Read more »


Dissection of the Aorta

This condition is considered a medical emergency. Urgent care may be required.

The aorta is a large artery that carries blood out of your heart. If you experience a dissection of the aorta, it means that blood has entered the wall of the artery, between the inner and middle layers. This can happe...

Read more »


Rheumatoid Arthritis Overview

Rheumatoid arthritis (RA) is an autoimmune disease, a disease in which the immune system mistakes the body's own cells for invaders. In RA, the immune system attacks the synovia, the membranes lining the joints.

Read more »


End-Stage Kidney Disease

End-stage kidney disease is the final stage of kidney disease. Signs include an inability to urinate, headache, change in skin color, excessive thirst, and swelling in the legs and hands.

Read more »


All About Abetalipoproteinemia

Abetalipoproteinemia (ABL) is an inherited condition that prevents the body from completely absorbing certain dietary fats. Untreated, it can cause vitamin deficiencies that may have long-term effects on your health.

Read more »


Chronic Lymphocytic Leukemia

Leukemia is a type of cancer that affects the blood and blood-forming tissues. There are many types of leukemia, each affecting different kinds of blood cells. Chronic lymphocytic leukemia, or CLL, is a cancer of th...

Read more »

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.