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

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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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Why Are More People Getting Acid Reflux? GERD Causes and Lifestyle Fixes

Updated Aug 29, 2026 | 11:00 AM IST

SummaryGERD is rising globally and in India, driven by diet, obesity, stress, and sedentary lifestyles. Learn simple lifestyle changes to manage acid reflux effectively.
Why Are More People Getting Acid Reflux? GERD Causes and Lifestyle Fixes

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Gastroesophageal reflux disease (GERD), commonly known as acid reflux, occurs when stomach contents flow backward into the esophagus, causing heartburn, regurgitation, chest discomfort, and sometimes chronic cough or hoarseness. This happens because the lower esophageal sphincter (LES), a muscle that normally prevents backflow, becomes weak or relaxes inappropriately, allowing acid to irritate the food pipe repeatedly. If left untreated, persistent reflux can lead to inflammation (esophagitis), ulcers, scarring, and in rare cases, pre-cancerous changes known as Barrett’s esophagus.

The global prevalence of GERD has been increasing in recent years, with around 14 % of adults worldwide affected according to recent meta-analyses. In India, community studies show notable rates, with higher prevalence in urban populations compared to rural areas and estimates ranging from about 8 % in some regions to higher figures in cities, reflecting shifting lifestyles. In Kolkata, according to Dr. Pradipta Sethy, Director, Gastroenterology, Manipal Hospital, EM Bypass and Mukundupur, the major patients are women, mostly pre-menopausal and menopausal, between the ages of 30-55 years. This rise can be attributed to several interconnected lifestyle and environmental factors.

One major contributor is dietary change. Traditional diets rich in fiber and whole foods are increasingly replaced by high-calorie, processed, and high-fat foods, along with frequent consumption of spicy and fried items. These foods can relax the LES and increase gastric acid production, making reflux more likely. In addition, habitual late-night meals followed by lying down soon after eating are common in urban settings and further promote reflux episodes.

Obesity and sedentary lifestyles are also important risk factors. Excess abdominal fat increases pressure on the stomach, forcing acid upward into the esophagus. Many adults with GERD in India and globally have overweight or central obesity, a trend growing alongside reduced physical activity. Stress and irregular eating patterns that accompany modern work life are additional contributors, often exacerbating symptoms and prompting unhealthy habits like caffeine or alcohol use, both of which can aggravate acid reflux.

Thankfully, GERD can often be managed effectively through simple lifestyle modifications. Eating smaller, more frequent meals and avoiding known trigger foods such as citrus fruits, chocolate, caffeine, and high-fat foods can reduce reflux episodes. Waiting 2–3 hours after eating before lying down and elevating the head of the bed during sleep helps keep acid in the stomach by using gravity to support digestion. Maintaining a healthy weight through regular physical activity reduces abdominal pressure, while quitting smoking and limiting alcohol intake supports LES function and esophageal health. Managing stress with techniques such as meditation or yoga further helps control symptoms by improving overall digestive function.

In conclusion, the rise of GERD in India mirrors global trends driven largely by dietary shifts, obesity, and modern lifestyle pressures. While medication is valuable for many patients, sustainable improvements often begin with these evidence-based lifestyle changes that address the root causes of acid reflux and improve long-term digestive health.

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Childhood Rashes: When Is Home Care Enough and When Should You See a Doctor?

Updated Aug 29, 2026 | 09:00 AM IST

SummaryChildhood rashes are common and often harmless, but some require medical attention. Learn when home care is appropriate and which warning signs mean your child needs medical or emergency care.
Childhood Rashes: When Is Home Care Enough and When Should You See a Doctor?

Rashes are common in children and can occur for many reasons. Most are harmless and settle on their own, but some may need medical attention. Knowing the warning signs can help parents decide when home care is enough and when to consult a doctor.

Why Do Rashes Happen?

Children’s skin is sensitive and can react to heat, friction, allergens, insect bites, irritants or infections. Common causes include heat rash, eczema, contact dermatitis, insect bites and viral infections such as chickenpox, hand-foot-and-mouth disease and roseola.

A rash can look worrying, but the child’s overall condition is often as important as the appearance of the rash itself.

When Home Care May Be Enough

If your child is active, reasonably comfortable, feeding and drinking well, and otherwise appears well, a mild rash can often be managed at home.

Home care may be appropriate when the rash:

  • Is mild and limited to a small area
  • Is not spreading quickly
  • Causes only mild itching or discomfort
  • Occurs without concerning symptoms
  • Looks consistent with a known condition such as heat rash or eczema
Keep the skin cool and dry, and dress your child in loose, breathable cotton clothing. Use a gentle, fragrance-free moisturiser if the skin is dry or itchy. Avoid harsh or fragranced soaps and discourage scratching.

Avoid applying multiple creams, powders, antiseptics or home remedies, as these may irritate the skin or make the rash harder to assess. Medicines or steroid creams should not be used without medical advice. Your paediatrician can recommend suitable treatment based on your child’s age, weight and the likely cause of the rash.

When Should You See a Doctor?

Seek medical advice if your child has:

  • A rash with fever, particularly if the child appears unwell, unusually sleepy, less responsive or is becoming progressively worse
  • A red or purple rash that does not fade or become lighter when pressed firmly with a clear glass, especially if the child has fever or appears unwell
  • A rapidly spreading rash
  • Large blisters, peeling skin or a painful/tender rash
  • Signs of a secondary skin infection, such as increasing redness, warmth, swelling, pain or pus
  • A new or unexplained rash in a newborn or young infant, especially if accompanied by fever, poor feeding or unusual sleepiness
  • Unusual sleepiness, weakness, poor feeding or reduced drinking
  • A rash that is getting worse, keeps recurring or does not improve with appropriate home care
Fever and rashes are common in childhood infections. What matters most is how your child looks and behaves overall. A child who appears very unwell, is difficult to wake, is feeding poorly or is rapidly deteriorating should be assessed promptly.

Seek Emergency Care Immediately If

A rash is accompanied by:

  • Difficulty breathing or swallowing
  • Swelling of the lips, mouth, face or tongue
  • Extreme sleepiness, marked weakness or a child who is difficult to wake
  • Rapid deterioration in the child’s overall condition
  • A concerning non-fading red or purple rash in a child who appears unwell
These symptoms may indicate a serious allergic reaction or another medical emergency and should not be managed at home.

What Parents Should Remember

Most childhood rashes are temporary and harmless. However, it is important to look beyond the rash itself.

Note when the rash started, where it first appeared, whether it is spreading and whether your child has fever or other symptoms. A photo of the rash can also help your paediatrician understand how it has changed over time.

Trust your instincts. If your child seems unusually unwell, is getting worse or something simply does not feel right, it is always better to seek medical advice rather than waiting.

A Simple Rule for Parents

Home care may be enough if your child is well, active and comfortable. Seek medical attention if the rash is accompanied by significant illness, rapid worsening or any warning signs.

By Dr Navin Bhatia, Senior Consultant & HOD – Paediatrics & PICU, PB Health

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Cancer Should Be Made Notifiable In India, Say Experts: Here’s Why

Updated Aug 28, 2026 | 04:11 PM IST

SummaryAround 17 states in India have already made cancer a notifiable disease, while the Supreme Court in August directed the remaining 19 states and Union Territories to comply with the requirement, aimed at enabling early detection and proper care of patients.
Cancer Should Be Made Notifiable In India, Say Experts: Here’s Why

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India is facing a significant and growing cancer burden, with the latest National Cancer Registry Programme study estimating that the lifetime risk of developing cancer in the country is 11% — about one in nine people.

The 2025 study also found that India ranks second in Asia and third globally in cancer incidence.

SC Directs States To Notify Cancer

Around 17 states in India have already made cancer a notifiable disease, while the Supreme Court in August directed the remaining 19 states and Union Territories to comply with the requirement, aimed at enabling early detection and proper care of patients.

The petition before the court argued that the continued non-notification of cancer, despite its alarming and escalating burden in India, amounted to a grave abdication of the state's constitutional duty under Articles 14 and 21 of the Constitution. It said this denied uniform treatment to similarly situated citizens and undermined their fundamental right to health and a life of dignity.

The Supreme Court's order is legally binding on the remaining 19 states and Union Territories, which have until November 11, 2026, to comply with the directive.

By the deadline, the concerned administrations are required to transition cancer into a notifiable disease and formally submit their progress reports to the Supreme Court. States will also need to issue official Gazette notifications requiring public and private healthcare entities to report cancer cases and related data.

Why Cancer Notification Matters

Speaking to HealthandMe, experts said making cancer notifiable could strengthen cancer surveillance, improve data collection and support research and treatment planning.

Dr Karishma Kirti, Consultant Obstetrician & Gynaecologist, Jaslok Hospital, Mumbai, said cancer should be treated as a notifiable disease, but through a system different from the traditional notification process used for infectious diseases.

How Cancer Registration Can Help

Dr Kirti told HealthandMe that mandatory registration of cancer cases could help India understand cancer trends and generate more real-world data to guide research.

“Mandatory registration of cancer cases will in the future help in understanding trends, generating real-world data early, and guiding research. Most of the evidence-based medicine and treatment that we recommend comes from Western data and mandating cancer registration will help India generate its own data and understand the inherent characteristics of Indian cancers better.”

Notifying Cancer Could Strengthen Cancer Care

Dr Harit K Chaturvedi, CEO & Clinical Head, Apollo Oncology Network, said making cancer a notifiable disease could help improve cancer care and research as the country's cancer burden rises.

“No two cancers are the same and the disease cannot be fought in silos. As the burden of cancer cases is increasing, wherein India is projected to record 1.5 million cases in 2026, declaring cancer as a notifiable disease can enable better cancer care and research across India,” he told HealthandMe.

Chaturvedi said notification of cancer would also give impetus to the decades-old National Cancer Registry Program and enable proper and mandatory record-keeping of cancer cases, as seen in many developed nations.

“By making cancer a notifiable disease, we can ensure that all cancer cases are reported and documented accurately, enabling us to track cancer incidence, mortality, and survival rates.”

Importantly, he said, notification would also enable policymakers, healthcare providers and researchers to work with real-time data, which could help bring more awareness, strengthen prevention and early detection, and improve treatment outcomes and quality of life.

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