What are early signs of diabetes? And what kind of testing is done to check for it?

I bruise easily and was told it could be a sign of diabetes. I am only 27. Also what do doctors do to test for diabetes?

1) Excessive thirst; constant thirst
2) Tired all the time; no amount of rest makes this better. Not enough energy to do ADL's. I sometimes would make a batter and literally not have the energy to put it from the bowl into the pan into the oven, I was so sick, and didn't know it. This disease totally mimics chronic fatigue syndrome.
3) Some people are hungry all the time, no matter how much they eat. Some people lose weight no matter how much they eat. Some people completely lose their appetite.
4) Extreme mood swings; emotional volatility, irritability, inability to cope w/ sometimes even the smallest problems or issues, as in literally NOT HAVING THE ENERGY TO COPE W/ SOMETHING, not wimping out.
5) Sometimes, symptoms of undiagnosed/untreated diabetes can mimic Manic-Depressive Disorder, or BPD (Bi-Polar Disorder).
6) In my own life, I have found hot flashes, anxiety attacks, "red in the face" issues, inability to deal w/ heat and humidity to be symptoms of blood sugars way too high, too.
7) Any significant changes in vision, of any kind-- GO GET CHECKED OUT!
8) Sometimes extreme depression sometimes with no obvious causes, as in out of keeping w/ a person's normal character.
9) Frequent urination, especially at night.
10) Craving sweets can also be a symptom.
11) The person's breath can smell "fruity" or "pear-like".

Most medical folks will take blood to check blood sugar and will also do a test called a Hemoglobin A1-C which will tell them what your bloodsugars have be running/trending for the last 3 months/90 days or so. Some doctors will order a Glucose Tolerance Test, but if your fasting blood sugar is above I think it's 120 now (used to be 140), your Dr. will strongly be suspecting diabetes. Source(s): I've been a diabetic for 20 years now.

ive also heard you lose weight and kind of fast
actually bruising easily is a sign of anemia or having a high platelet count..your doctor can draw a cbc which is a lab and tell you more..
Bruising easy is not a sign of diabetes. It more likely a sign of anemia or cancer or nothing at all.

http://www.cdc.gov/diabetes/faq/basics.h...
Are you very thirsty?
Do you urinate quite often? Getting up in the middle of the night to urinate?

The doctor will draw some blood. From that he can tell if you need pills, insulin or nothing at all.

This takes only a few minutes but is well worth your time.

Are there any other problems, besides bruising, that you have? That can be a symptom of other problems.
Diabetes is very dangerous and can be fatal if left untreated.
Bruising can be a sign of anemia.
You need to go to a doctor for a simple blood test that will determine what the problem is.
This forum will only give you either more symptoms or worries.