Medically reviewed by Dr Usman Naeem, 24 Oct 2026.
What is SGPT (ALT)?
SGPT and ALT are two names for the same enzyme. It is found mainly inside liver cells. When liver cells are irritated or injured, more of it leaks into the blood, so the level in your report goes up.
Laboratories use slightly different normal ranges, so always compare your result with the range printed on your own report. A single mildly high result in a person who feels well is common, but it should not simply be ignored.
Common causes
In Pakistan the most frequent causes we look for are:
- Fatty liver (MASLD), linked to extra weight around the waist, diabetes, high cholesterol and blood pressure. This is the commonest cause worldwide
- Hepatitis B or C, which can stay silent for many years and are common in Pakistan
- Medicines, herbal and “desi” remedies, supplements and bodybuilding products. Some antibiotics, anti-tuberculosis drugs and painkillers can raise liver tests
- Alcohol
- Recent infection such as hepatitis A or E, typhoid or dengue
- Heavy exercise or muscle injury, which can raise the enzyme without liver disease
- Less common causes such as thyroid problems, coeliac disease, autoimmune hepatitis, and inherited conditions such as Wilson’s disease (in younger people) or iron overload
What tests usually come next?
Your doctor will ask about your symptoms, medicines, supplements and alcohol, and examine you. Depending on the situation, tests may include:
- A repeat liver function test, including bilirubin, alkaline phosphatase (ALP), GGT and albumin
- Hepatitis B surface antigen (HBsAg) and hepatitis C antibody (anti-HCV)
- Full blood count (platelets are useful for judging liver scarring), blood sugar or HbA1c, and cholesterol
- An abdominal ultrasound to look for fat, gallstones or other changes
- A check for scarring (fibrosis), for example a FIB-4 blood score or liver elastography (FibroScan)
- Further tests only when needed, such as thyroid, coeliac, autoimmune or iron studies
Does a higher number mean a worse liver?
Not always. A very high level (many times the upper limit) usually points to a recent or active injury, such as acute viral hepatitis or a medicine reaction, and needs prompt assessment. But people with advanced scarring (cirrhosis) can have a normal or only slightly raised SGPT. That is why doctors look at the whole picture, including scarring tests, and not the SGPT number alone.
What you can do now
- Do not stop prescribed medicines on your own, but tell your doctor about every medicine, herbal product and supplement you take
- Avoid alcohol and avoid “liver detox” products, which are unproven and can sometimes harm the liver
- If you are overweight, gradual weight loss with a healthier diet and regular activity is the most effective treatment for fatty liver
- Make sure you have been tested for hepatitis B and C, and ask about hepatitis B vaccination if you are not immune
- Bring all your earlier reports to your appointment so trends can be compared
When to seek medical help urgently
- Yellow eyes or skin (jaundice), dark urine or pale stools
- Confusion, unusual drowsiness or behaviour change
- Vomiting blood or passing black, tarry stools
- Swelling of the belly or legs
- A very high SGPT together with feeling unwell, vomiting or abdominal pain
- Raised liver tests after starting a new medicine, herbal remedy or supplement
In an emergency go to the nearest emergency department or call Rescue 1122. Do not wait for a WhatsApp reply.
Common questions
Is a slightly high SGPT dangerous?
Often it is mild and due to a treatable cause such as fatty liver, but it should be repeated and the cause looked for. A doctor will also check whether there is any liver scarring.
Can SGPT go back to normal?
Yes, in many people. When the cause is treated, for example weight loss for fatty liver, stopping a harmful product, or treatment of hepatitis C, the level often settles. How quickly depends on the cause.
Do I need to fast before a liver function test?
Fasting is not usually required for SGPT itself, but it may be requested if blood sugar or cholesterol are tested at the same time. Follow the laboratory’s instructions.
Are there medicines or syrups that lower SGPT?
There is no general tablet that “lowers SGPT”. Treatment is aimed at the cause. Please avoid unproven liver tonics and ask your doctor before taking any product.
Would you like Dr Usman Naeem to look at your case?
Consultations are available in clinic in Lahore or online. Message on WhatsApp 0332-0420421 or 0334-0421313, or call or SMS 0311-4444600. The clinic will confirm a day and time.
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جگر خراب ہونے کی 7 علامات (Liver Warning Signs) جنہیں نظرانداز نہ کریں
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Watch on YouTubeRelated condition guides
More articles
- Fatty Liver Diet: A Practical Guide with Everyday Pakistani Food
- Blood in Stool: Common Causes, When to Worry and When a Colonoscopy Is Needed
- Hepatitis B and C in Pakistan: Which Tests You Need and How Treatment Works
- Acidity and H. pylori: Symptoms, Testing and When to See a Doctor
- When Do You Need an Endoscopy? Reasons, Preparation and What to Expect
- Cirrhosis Diet: What to Eat and What to Avoid
- Water in the Belly (Ascites): Causes, Tests and Care
- Yellow Eyes (Jaundice): Causes, Tests and When to Worry
Sources and further reading
- Kwo PY, Cohen SM, Lim JK. ACG Clinical Guideline: Evaluation of Abnormal Liver Chemistries. Am J Gastroenterol 2017;112:18–35. Link
- Newsome PN et al. Guidelines on the management of abnormal liver blood tests (BSG). Gut 2018;67:6–19. Link
- EASL–EASD–EASO Clinical Practice Guidelines on the management of MASLD. J Hepatol 2024. Link
- World Health Organization. Hepatitis B and Hepatitis C fact sheets. Link
General information only, not personal medical advice. Do not start or stop medicines because of this article. See the medical disclaimer.