What Is Alkaptonuria? The Rare Disease That Turns Your Pee Black – Here’s Why

Updated Feb 7, 2025 | 08:00 AM IST

SummaryAlkaptonuria is a rare genetic disorder that causes black urine due to homogentisic acid buildup, leading to joint pain, cartilage damage, and skin discoloration. It has no cure but can be managed.
What Is Alkaptonuria? The Rare Disease That Turns Your Pee Black – Here’s Why

Image Credit: Canva

A condition, known commonly as "black urine disease" or Alkaptonuria is a rare genetic disorder involving protein metabolism, and it has its root in the mutation of the homogentisate 1,2-dioxygenase gene, which in turn causes homogentisic acid accumulation in the body. The appearance of dark urine after exposure to air is due to this kind of accumulation; however, a variety of symptoms can be expected, such as joint stiffness, changes in pigmentation, and other long-term health complications. Although the prevalence has been estimated to be between 1 in 250,000 and 1 in 1 million people in the United States, its effects are indeed high on those affected.

Alkaptonuria is an autosomal recessive disease, meaning that the child must inherit a defective copy of the HGD gene from both parents. If both parents are carriers, their offspring have a 25% chance of inheriting two faulty genes and developing alkaptonuria. The condition is genetic but is often not diagnosed for years because it progresses slowly and its early symptoms appear to be harmless.

Symptoms of Alkaptonuria

The most characteristic and common initial symptom of alkaptonuria is dark urine. The reason for this is due to the fact that excess HGA is excreted in the urine and upon oxidation in the presence of air, it gives the urine a brown or black color. Though it is often considered cosmetic, the long-term accumulation of HGA within the connective tissues produces more complicated health problems.

Progressive joint pain and stiffness: The accumulation of HGA in cartilage leads to early-onset osteoarthritis, making movement increasingly difficult over time.

Skin and eye pigmentation changes: Affected individuals may develop bluish or grayish discoloration of the sclera (white part of the eye) and the skin, particularly in areas exposed to friction.

Cardiovascular and respiratory problems: With age, HGA accumulation can lead to valve calcifications in the heart and stiffening of connective tissues in the respiratory tract, which can cause problems in middle and old age.

Decreased mobility and spinal problems: The spine may become stiff and painful due to chronic cartilage degeneration.

These symptoms usually begin to manifest during adulthood, leading to severe complications in a person's 40s or 50s and significantly affecting the quality of their life.

How is Alkaptonuria Diagnosed?

Because of its rarity, alkaptonuria is often mistaken or overlooked early in life. However, there are several ways to confirm the condition:

Urine Testing: The gold standard in the diagnosis is the testing of urine samples for high levels of homogentisic acid via gas chromatography. In case of oxidation, which changes the color of urine to black, it is indicative of alkaptonuria.

Genetic Testing: Confirmatory genetic testing reveals mutations of the HGD gene to diagnose the condition conclusively.

Blood Tests: High levels of HGA in the blood can be used as further evidence.

Imaging Studies: X-rays and MRIs will expose cartilage and joint damage characteristic of alkaptonuria.

Management of Alkaptonuria: Is There A Cure?

At present, there is no cure for alkaptonuria; however, various treatment approaches can reduce its symptoms and slow the disease's progress:

Nitisinone Therapy: Nitisinone is a drug that inhibits the production of HGA. It has been shown to reduce HGA levels and slow tissue damage. However, it needs to be taken under close medical supervision because of potential side effects.

Low-Protein Diet: Since HGA is a byproduct of protein metabolism, reducing protein intake—especially foods rich in tyrosine and phenylalanine—may help decrease HGA production.

Pain Management: OTC pain relievers and anti-inflammatory medications can be used to relieve joint pain and stiffness.

Physical Therapy: Exercise regularly, as it may improve mobility and strengthen muscles, thus reducing strain on affected joints.

Surgical Interventions: Most people with alkaptonuria develop severe osteoarthritis necessitating joint replacement in their old age. Also, some may require heart valve replacement surgery if cardiovascular complications develop.

Life with Alkaptonuria

Although alkaptonuria is not fatal, it severely affects the quality of life. The progressive deterioration of the joints and associated symptoms can make everyday activities difficult, requiring lifestyle changes and medical interventions. The disease may cause premature aging of the joints, requiring walking aids and mobility assistance earlier than expected.

Ongoing research will continue to work on improving the treatment options by focusing on gene therapy and alternative enzyme replacement therapies. However, because of its rarity, the clinical trials and research remain sparse.

As genetic research advances, more hope for better management and possible curative approaches for alkaptonuria exists. Scientists are searching extensively for enzyme replacement therapies and innovative drugs that can target the root cause of the disorder. Being aware and being diagnosed early helps individuals better their condition and ultimately have better long-term health outcomes.

Alkaptonuria is a striking example of how one gene mutation can have widespread effects on the body. Though still a rare and often misunderstood condition, growing awareness and advances in treatment are paving the way for better care. If you or a loved one suspect symptoms of alkaptonuria, it is essential to seek early diagnosis and medical guidance to manage the disease effectively and preserve quality of life.

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Amy Carr, Former England Youth Player Dies At 35

Updated Mar 14, 2026 | 04:17 PM IST

SummaryFormer England youth goalkeeper Amy Carr died at 35 after battling a second brain tumor. She previously played for Arsenal, Chelsea, and Reading, and raised over £2,000 for brain tumor research by running the Dublin Marathon.
Amy Carr, Former England Youth Player Dies At 35

Credits: Instagram

Former youth player of England, Amy Carr dies at the age of 35. England women's football team too paid tribute on her death. Carr was a former goalkeeper who played for England Under-17s and Under-19s. She was diagnosed with a brain tumor for a second time.

She was diagnosed in 2015 and raised more than £2,000 for charity by running the Dublin Marathon in 2024.

"We are heartbroken to hear that former England youth player Amy Carr has passed away aged 35," read a statement on the Lionesses' X account. "Amy, who was diagnosed with a second brain tumour in 2024, devoted her time to raising money for vital brain tumour research that could help others. She remains an inspiration to all."

Carr also played for Arsenal, Chelsea and Reading before she gained a football scholarship in the USA. Chelsea added on X: "We are saddened to learn of the passing of former Chelsea goalkeeper, Amy Carr. Our condolences are with Amy's friends and family at this time."

What Is Brain Tumor?

Before diving into the concept of a brain tumor, it is important to first understand what a tumor is. A tumor refers to an abnormal lump or mass that forms due to the uncontrolled growth of cells in the body.

tumors are broadly classified into two main categories:

  • Benign
  • Malignant

A benign tumor consists of normal cells that have grown excessively to form a lump. This overgrowth may result from something going wrong in the body, but the cells themselves are not cancerous. On the other hand, a malignant tumor is made up of abnormal cells that grow uncontrollably. These are cancerous cells, and their aggressive nature can lead to serious health issues.

A brain tumor is a condition in which abnormal cells develop within any part of the brain. Similar to tumors elsewhere in the body, brain tumors can also be benign (non-cancerous) or malignant (cancerous). The presence of a tumor in the brain can interfere with normal brain function, depending on its size, type, and location.

Our bodies possess a natural healing mechanism that is crucial for survival. This repair system is activated whenever there is damage from injury, radiation from the sun, or harmful chemicals in the environment. However, this process can occasionally go wrong. When it does, small clusters of cancerous cells may begin to form. In most cases, the immune system successfully detects and destroys these abnormal cells before they grow. But in rare instances, these cancerous cells evade immune detection and continue to grow, leading to the formation of tumors or cancers.

Such abnormal growths can occur anywhere in the body. When these growths are located in the brain or spinal cord, they are referred to as Central Nervous System (CNS) tumors.

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India Is Home To 25% of the World’s Cervical Cancer Victim

Updated Mar 14, 2026 | 03:25 PM IST

SummaryIndia accounts for 25% of global cervical cancer deaths, with 120,000 new cases yearly. Caused mainly by high-risk HPV, the disease can be prevented through vaccination and screening. India has launched a nationwide HPV vaccination drive.
India Is Home To 25% of the World’s Cervical Cancer Victim

Credits: Canva

India is home to 25 per cent of the world's annual count of cervical cancer fatalities. According to the World Health Organization GLOBOCAN report of 2022, India reports over 120,000 new cases with nearly 80,000 fatalities. This is the highest death-toll worldwide from cervical cancer each year.

In India, a new case is diagnosed every four minutes, and another woman dies approximately every seven minutes. Persistent infection with high-risk HPV strains, especially types 16 and 18, is the leading cause of cervical cancer. Meanwhile, studies show that even a single dose of the HPV vaccine can provide long-lasting, potentially lifelong protection.

To combat this, India launched a nationwide campaign to vaccinate young girl against the human papillomavirus (HPV). This is also the second most common cancer among women in the country. India kicked off the nationwide campaign on 28 February. Prime Minister Narendra Modi at Ajmer city in the western state of Rajasthan inaugurated this campaign. Vaccines were made available free-of-cost at government facilities to approximately 11.5 million girls aged 14 years across the country.

Currently, approximately one in every 50 girls born in India is expected to develop cervical cancer during her lifetime, and widespread vaccination is likely to reduce this risk significantly," said Partha Basu, Head, Early Detection, Prevention & Infections Branch at the International Agency for Research on Cancer.

What Is Cervical Cancer?

Cervical cancer develops in a women's cervix (uterus opening) due to abnormal cell growth, primarily caused by persistent HPV infection, a common infection that's passed through sexual contact.

When exposed to HPV, the body's immune system typically prevents the virus from causing damage however, in a small percentage of people, the virus can survive for years and pave the way for some cervical cells to become cancerous.

Treatment involves surgery, radiation, and chemotherapy, with early detection significantly improving outcomes, though it remains a major cancer in low-income countries Cervical cancer can also be prevented through vaccination and regular screening (Pap/HPV tests).

Symptoms Of Cervical Cancer

Cervical cancer has no symptoms in the early days and therefore, is hard to detect until it has spread. However, the early-stage symptoms include:

  • Vaginal bleeding after sex
  • Vaginal bleeding post-menopause
  • Vaginal bleeding between periods or unusually heavy/long periods
  • Watery vaginal discharge with a strong odor or containing blood
  • Pelvic pain or pain during intercourse
  • Advanced Cervical Cancer Symptoms (when cancer has spread beyond the cervix)
  • Painful or difficult bowel movements or rectal bleeding
  • Painful or difficult urination or blood in the urine
  • Persistent dull backache
  • Swelling of the legs
  • Pain in the pelvis or lower abdomen

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How Everyday Stress And Lifestyle Are Damaging Your Heart Health

Updated Mar 14, 2026 | 03:00 PM IST

SummaryEarly warning signs such as fatigue, palpitations, breathlessness, and unexplained chest discomfort are usually untreated or attributed to stress. ​However, such signs should not be ignored, especially if they occur on a frequent basis.
How Everyday Stress And Lifestyle Are Damaging Your Heart Health

Credit: Canva

Diseases related to the heart are often considered conditions that affect older individuals, but in recent times, we are witnessing an increase in cardiovascular issues among the young urban professionals, particularly those who are aged between 20 and 40.

Factors that contribute most to the health of the heart are mainly increasing work pressure, irregular lifestyles, poor sleep patterns, and chronic stress as well.

Modern lifestyles have also created conditions where many individuals expose their hearts to continuous stress in an unknowing way.

The Role of Chronic Stress in Heart Health

Stress is one of the most underestimated risk factors of heart disease. When a prolonged stress is experienced by a person, certain hormones are released by the body, such as adrenaline and cortisol, which also increase the heart rate and blood pressure.

During the short-term challenges, chronic stress usually keeps the body in a constant state of alertness. With the passage of time, this can also lead to persistent high blood pressure, inflammation, and increased strain on the heart, which also raises the risk of cardiovascular disease.

Young professionals who usually have long working hours, deal with tight deadlines each and every day, or experience job insecurity, are quite vulnerable to stress-related heart problems.

Lifestyle Habits That Are Putting The Heart At Risk

Lifestyle habits are also affecting the health of the heart, such as:

  • A sedentary lifestyle: Long hours of desk work with minimal physical activity reduce cardiovascular fitness and increase the risk of obesity as well.

  • Poor dietary habits: Regular consumption of processed foods, excessive intake of salt, and unhealthy fats also contribute to high levels of cholesterol and hypertension.

  • Lack of sleep: Nowadays, many working professionals get less than 7-8 hours of sleep, which also impacts the hormonal balance.

  • Smoking and alcohol consumption: These habits usually increase the risk of heart disease by damaging the blood vessels and increasing blood pressure as well.

Why Young Adults Should Not Ignore Early Warning Signs

Early warning signs such as fatigue, palpitations, breathlessness, and unexplained chest discomfort are also observed in many younger patients. These symptoms are usually untreated or attributed to stress.

However, such signs should not be ignored, especially if they occur on a frequent basis.

Maintaining the health of the heart also requires a great effort to balance the demands of work with healthy habits.

Doctors recommend:

  • regular physical activity,
  • a balanced amount of nutrition,
  • practices related to stress management,
  • routine health screening

In today’s fast-paced world, safeguarding the health of the heart should not be considered as a long-term investment in the overall well-being.

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