Every monsoon, Indian vet clinics fill with the same three things: tick fever, leptospirosis and skin infections. All three have one root cause, and all three are largely preventable with habits that take a few minutes a day. Here is what is actually happening and what to do about it.
Most pet health advice is written for temperate climates where the rainy season means a wet walk and a muddy floor. The Indian monsoon is a different thing: weeks of high humidity, standing water in every street, and a tick population that explodes in exactly those conditions.
Three problems dominate Indian vet clinics through the monsoon (June to September in most of India, October to December in Tamil Nadu), and they share one root cause. Moisture. Ticks multiply fastest in the warm, wet months, leptospirosis bacteria survive in it, and a coat that never dries grows fungus in it. Understanding that makes the prevention obvious.
Tick fever is the Indian shorthand mainly for two diseases spread by ticks, especially the brown dog tick. Other tick-borne infections such as Anaplasma and Hepatozoon are also common. Ehrlichiosis is bacterial and attacks platelets and white cells. Babesiosis is a parasite that destroys red blood cells. Both are common, both are serious, and a dog can have both at once.
| Stage | What you see | What to do |
|---|---|---|
| Early | Fever, lethargy, off food, swollen lymph nodes | Vet within a day or two, mention ticks |
| Serious | Pale gums, dark or red urine, nosebleeds, bleeding gums, bruising | Vet the same day. These mean anaemia or platelets are crashing. |
| Chronic | Weight loss, recurring fever, eye problems, months after exposure | Ehrlichia can hide. Tell your vet about any past tick history. |
Diagnosis is a blood test, and treatment is a course of specific medication, doxycycline for ehrlichia, and injections, sometimes combined with oral medicines, for babesia. Both are very treatable if caught early and increasingly dangerous the longer they run. The single most useful thing you can tell a vet is whether you have found ticks on the dog recently.
To check for ticks: run your fingers against the coat around the ears, neck, armpits, groin and between the toes. Ticks feel like a small firm bump. Remove them with tweezers close to the skin, pulling straight out. Do not burn them or use oil.
Leptospirosis is a bacterial infection spread through water contaminated with the urine of infected animals, most often rats. During the monsoon, that means waterlogged streets, stagnant puddles and flooded low-lying areas. A dog does not need to drink the water. Leptospira can enter through cuts or skin softened by long soaking, so walking through it can be enough.
It attacks the kidneys and liver. Early signs are vague: fever, vomiting, lethargy and poor appetite, but it can progress to kidney failure quickly. It is also zoonotic: an infected dog can pass it to people in the house through its urine, so wear gloves when cleaning up and wash your hands.
The vaccine is the L in the DHPPiL combination shot, and it needs a booster every year, and many Indian vets time it just before the monsoon. If the booster is long overdue, your vet may restart with two doses 2 to 4 weeks apart, so book early. It covers the most common strains, not all of them, so the second half of prevention is avoiding stagnant water entirely. Our vaccination schedule covers where lepto fits.
This is one of the most common monsoon complaints and usually the least dangerous, but it makes dogs miserable. The mechanism is simple: at 80 to 90 percent humidity, a dog's coat does not dry between walks. Moisture stays trapped between the toes, in the armpits and groin, under the collar and in skin folds. Warm, dark and damp is exactly what yeast, bacteria and fungi want.
Signs are scratching, red or darkened skin, a musty smell, hair loss in patches, and for ears, head shaking and a brown discharge. Interdigital infections between the toes are common in monsoon-walked dogs that are not dried properly.
Treatment is usually an antifungal or medicated shampoo and, for ears, drops from a vet. Prevention is drying, which we come to next.
If you do only three things this monsoon, make them these. Together they prevent most of what fills the clinics.
Dogs still need to go out, and the practical adjustments are small.
Cats mostly self-manage the monsoon by refusing to go out, but indoor cats in humid homes can get similar ear and skin issues. A weekly check of the ears and a dry, well-ventilated sleeping spot cover it.
This guide is general information, not veterinary advice. Pale gums, dark urine or bleeding in a dog during tick season are same-day emergencies.
The common name in India for two tick-borne diseases: ehrlichiosis, caused by the bacterium Ehrlichia canis, and babesiosis, caused by the parasite Babesia. Both spread mainly through ticks, especially the brown dog tick, which is most active in India's warm, wet months. Babesia gibsoni can also pass through dog bites.
Fever, lethargy, loss of appetite and swollen lymph nodes early on. Pale gums, dark urine or bleeding from the nose or gums are serious signs of anaemia or low platelets and mean a same-day vet visit.
By drinking or walking through water contaminated with the urine of infected animals, usually rats. Waterlogged streets and puddles during the monsoon are the main exposure. It is zoonotic, meaning it can also spread to humans.
Yes. It is the L in the DHPPiL combination vaccine, and vets often recommend a booster before the monsoon for dogs with outdoor exposure. It does not cover every strain, so avoiding stagnant water still matters.
Trapped moisture. A coat at high humidity does not dry between walks, and warm, damp pockets between the toes, under the legs and in skin folds are where yeast, bacteria and fungi multiply. Drying the dog thoroughly after every walk goes a long way to preventing it.
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