30 Diseases That Start With The Letter G

Have you ever wondered about diseases that start with the letter “G”? Wonder no more, this article is exactly what you are looking for.

In this article, I will dive into the realm of some known and lesser-known diseases beginning with this enigmatic letter G, aiming to raise awareness and understanding.

So, without any further ado, let’s embark on this fascinating journey and broaden our understanding of diseases that start with the letter G.


Diseases That Start With G

The followings are some known and lesser-known diseases that begin with the letter G (In alphabetical order):

1. Galactosemia: Galactosemia is a rare genetic disorder in which the body is unable to metabolize galactose, a sugar found in milk and dairy products. This condition can lead to severe complications, including liver damage, intellectual disability, and cataracts.

2. Gallbladder Cancer: Gallbladder cancer is a malignant tumor that forms in the gallbladder, a small organ located beneath the liver. It is often diagnosed at an advanced stage, making it difficult to treat. Symptoms may include abdominal pain, jaundice, and unintended weight loss.

3. Gallstones: Gallstones are hardened deposits that form in the gallbladder. They can vary in size and may block the bile duct, leading to intense pain, nausea, and inflammation of the gallbladder.

4. Ganglion Cyst: A ganglion cyst is a noncancerous lump that usually forms along the tendons or joints of the wrists or hands. While often painless, they can cause discomfort and restrict movement.

5. Gangrene: Gangrene is the death of body tissue due to a lack of blood flow or infection. It can occur in various parts of the body and may require immediate medical attention to prevent further complications.

6. Gas: Gas, also known as flatulence, refers to the accumulation of air in the digestive tract. While typically harmless, excessive gas can cause bloating and discomfort.

7. Gastrectomy: Gastrectomy is a surgical procedure that involves the removal of all or part of the stomach. It is often performed to treat stomach cancer or severe peptic ulcers.

8. Gastric Cancer: Gastric cancer, also known as stomach cancer, is a type of cancer that develops in the lining of the stomach. Early symptoms may be mild, but as the cancer advances, it can cause abdominal pain, weight loss, and difficulty swallowing.

9. Gastric Ulcer: A gastric ulcer is a sore or lesion that forms on the lining of the stomach. It can cause pain, bloating, and indigestion.

10. Gastritis: Gastritis is inflammation of the stomach lining, often caused by infection, excessive alcohol consumption, or prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs).

11. Gastroenteritis: Gastroenteritis, commonly known as the stomach flu, is an inflammation of the stomach and intestines. It typically presents with symptoms like vomiting, diarrhea, and abdominal cramps.

12. Gastro Esophageal Reflux Disease (GERD): GERD is a chronic condition in which stomach acid flows back into the esophagus, causing irritation and discomfort. Persistent reflux can lead to complications like esophagitis and Barrett’s esophagus.

13. Gastro Oesophageal Reflux Disease (GORD): GORD is another term used to describe Gastro Esophageal Reflux Disease, particularly in British English.

14. Genital Herpes: Genital herpes is a sexually transmitted infection caused by the herpes simplex virus (HSV). It presents with painful sores or blisters in the genital and anal regions.

15. Genital Symptoms: Genital symptoms encompass various health issues affecting the male and female genital areas, such as pain, itching, discharge, or abnormal growths.

16. Genital Warts: Genital warts are growths caused by certain strains of the human papillomavirus (HPV). They can appear on the genitals or anus and may be associated with an increased risk of cervical cancer in women.

17. Germ Cell Tumours: Germ cell tumors originate from the cells that produce eggs or sperm. They can occur in the ovaries, testicles, or other parts of the body.

18. German Measles (Rubella): German measles, or rubella, is a viral infection that causes a distinctive red rash. While usually mild, it can be dangerous for pregnant women, as it can lead to congenital rubella syndrome in unborn babies.

19. Giardiasis: Giardiasis is a parasitic infection caused by the protozoan Giardia lamblia. It commonly affects the intestines and can cause diarrhea, abdominal cramps, and weight loss.

20. Gingivitis: Gingivitis is the early stage of gum disease, characterized by red, swollen, and bleeding gums. Proper dental hygiene and professional cleanings can help prevent it from progressing to more severe periodontal disease.

21. Glandular Fever: Glandular fever, also known as infectious mononucleosis or “mono,” is a viral infection caused by the Epstein-Barr virus. It can lead to symptoms like fever, sore throat, swollen lymph nodes, and fatigue.

22. Glaucoma: Glaucoma is a group of eye conditions that can damage the optic nerve and lead to vision loss. It is often associated with increased intraocular pressure and requires careful management to preserve vision.

23. Glomerulonephritis: Glomerulonephritis is inflammation of the glomeruli, the filtering units of the kidneys. It can result from various conditions, including infections, autoimmune diseases, and certain medications.

24. Goiter: A goiter is an enlargement of the thyroid gland in the neck. It can be caused by iodine deficiency or thyroid disorders like hypothyroidism or hyperthyroidism.

25. Gonorrhea: Gonorrhea is a sexually transmitted infection (STI) caused by the Neisseria gonorrhoeae bacterium. It primarily affects the genital and rectal areas in both men and women, but can also infect the throat and eyes. If left untreated, gonorrhea can lead to serious complications such as pelvic inflammatory disease (PID) in women and epididymitis in men.

26. Gonorrhoea: Gonorrhoea is another term used to describe the sexually transmitted infection caused by Neisseria gonorrhoeae, especially in British English.

27. Gout: Gout is a form of inflammatory arthritis that results from the accumulation of uric acid crystals in the joints. It commonly affects the big toe and can cause sudden and severe pain, swelling, and redness.

28. Gouty Arthritis: Gouty arthritis is another term used to describe the inflammatory arthritis caused by gout.

29. Gum Disease: Gum disease, also known as periodontal disease, is an infection of the tissues surrounding the teeth. It begins with gingivitis and, if left untreated, can progress to periodontitis, leading to tooth loss and other oral health issues.

30. Gynecomastia: Gynecomastia is a condition characterized by the enlargement of breast tissue in males. It can be caused by hormonal imbalances, certain medications, or underlying health conditions.


I hope you found this article “Diseases That Start With G” helpful and got insights into some of the rare and lesser-known medical conditions.

Also, keep in mind that, this isn’t an exhaustive list, if there are any Diseases starting with the letter G.

Feel free to leave a comment below with the missing Disease and I’ll update the list as soon as possible.

And, if you’d like to explore more Diseases starting with different letters of the alphabet, click the link below:

  • Diseases That Start With H
  • Diseases That Start With I
  • Diseases That Start With J
  • Diseases That Start With K

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top