Unintentional Weight Gain: Causes, Symptoms & Diagnosis
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What causes unintentional weight gain? 19 possible conditions

Unintentional weight gain occurs when you put on weight without increasing your consumption of food or liquid. It is often caused by: fluid retention abnormal growths constipation pregnancy Unintentional weight gain can be periodic, continuous, or rapid.... Read more

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

1

Pregnancy

Bleeding or spotting, increased need to urinate, tender breasts, fatigue, nausea, and missed period are signs of pregnancy.

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2

Hypothyroidism

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.

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3

Gestational Diabetes

During pregnancy, you might develop high levels of blood sugar. Learn how this condition, known as gestational diabetes mellitus, is diagnosed and treated.

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4

Dysthymia

Persistent depressive disorder, formerly known as dysthymia, is a form of chronic depression. Learn about its symptoms, causes, treatment, and more.

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5

AIDS

There are many symptoms of HIV/AIDS, including persistent skin rashes, night sweats, and mouth sores.

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6

Menopause

Menopause is a natural biological process in women that marks the permanent end of menstruation and fertility. Hot flashes, vaginal dryness or pain, and frequent urination are signs.

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7

PMS (Premenstrual Syndrome)

Premenstrual syndrome causes a wide variety of emotional and physical symptoms. Learn more about it.

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8

Cushing Syndrome

Cushing's syndrome occurs due to abnormally high levels of cortisol. The most common cause of it is overuse of corticosteroids. Learn more about this condition.

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9

Hashimoto's Disease

Hashimoto's disease is a condition that damages the thyroid's ability to function properly. It can cause a goiter, or enlarged thyroid, which can make the front of the neck look swollen.

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10

Postpartum Depression

Postpartum depression affects as many as 13 percent of new mothers. In the U.S., that's half a million women. Learn about symptoms, causes, risks, and more.

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11

Polycystic Ovarian Syndrome

Polycystic ovarian syndrome (PCOS) is a condition in which a woman's levels of the sex hormones estrogen and progesterone are out of balance. This leads to the growth of ovarian cysts.

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12

Bipolar Disorder

Bipolar disorder is a mental illness marked by extreme shifts in mood ranging from mania to depression. It is also called bipolar disease or manic depression.

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13

Acromegaly

Acromegaly is a rare hormonal condition caused by an excess amount of growth hormone in the body. It leads to excessive growth.

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14

Alcoholic Liver Disease

Damage to the liver from excessive drinking can lead to ALD. Years of alcohol abuse cause the liver to become inflamed and swollen. This damage can also cause scarring known as cirrhosis. Cirrhosis is the final stage o...

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15

Kidney Failure

Your body becomes overloaded with toxins if your kidneys can't do their regular job. This can lead to kidney failure and even be life-threatening.

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16

Congestive Heart Failure (CHF)

Congestive heart failure (CHF) is a chronic condition that affects the chambers of your heart. CHF refers to fluid buildup around your heart.

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17

Diabetic Nephropathy

Diabetic nephropathy is a type of progressive kidney disease that occurs in people who have type 1 or type 2 diabetes. The University of Washington estimates that 20 to 40 percent of people with diabetes will ge...

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18

Pituitary Cancer

The pituitary gland is a very small gland of major importance to the functioning of the human body. It is located directly behind the eyes and below the front of the brain. It is about the size of a pea. Despite it...

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19

Ovarian Cancer

The ovaries are small organs on either side of the uterus. They're where eggs are produced. Ovarian cancer can occur in different parts of the ovary.

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