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Eclampsia (Milk Fever) in Dogs

Occurrence: rarer
Location of illness: General/Whole body

Author: Dr. med. vet. Gisa Löwe | Last modified: 06.11.2025

Eclampsia, also known as milk fever, is an acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention., life-threatening condition in lactating female dogs caused by a sudden drop in blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels, often occurring in the first few weeks after giving birth.

The most important facts at a glance

Eclampsia, also known as milk fever, is a serious condition in lactating female dogs caused by a sudden drop in blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels. This condition occurs when the female dog’s body cannot provide enough calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to meet the increased demand during milk production. Common symptoms include tremors, Restlessness, dilated pupils, and in severe cases, Seizures. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is made by clinical symptoms and blood tests that show a low blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. level.

Treatment requires immediate veterinary intervention, especially intravenous administration of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to relieve symptoms. In the long term, adjusting the diet is important to prevent renewed calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. deficiencyDeficiency means a lack or absence of a necessary substance required for normal bodily functions or health, such as vitamins, minerals, or hormones.. Preventive measures include a balanced diet during pregnancy and lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens., regular veterinary examinations, and, if necessary, limiting the number of puppies to be cared for. Research focuses on new nutritional concepts, genetic factors, and improved diagnostic procedures to minimize the risk and severity of eclampsia. With early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and treatment, the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is usually good, but delayed treatment can lead to complications.

Causes

Eclampsia occurs when the female dog’s body is unable to provide enough calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to meet the increased demand during lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens.. CalciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. is an essential mineral that plays an important role in various physiological processes, especially muscle contraction and nerve conduction.

During lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens., the calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. requirement increases dramatically as the female dog needs calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. in large quantities for milk production. If calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. intake or mobilization from the bones is not sufficient to meet this need, blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels drop, which can lead to neuromuscularNeuromuscular refers to the relationship between nerves and muscles, particularly the transmission of nerve impulses that trigger muscle contraction. Neuromuscular disorders can affect movement and coordination in animals. symptoms.

The causes of eclampsia are varied and can be both nutritional and due to metabolicMetabolic refers to metabolism, i.e. the entirety of chemical processes that take place in a living organism to enable life processes. Metabolic disorders can cause a variety of Diseases in Dogs and cats. disorders. Female dogs that have received an unbalanced diet during pregnancy are at higher risk because they may not have built up enough calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. reserves.

Another factor can be genetic susceptibility, as some dog breeds are more prone to eclampsia than others. Small dog breeds are more commonly affected because they have relatively fewer calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. reserves to meet the increased demand.

Symptoms

Common symptoms:

The symptoms of eclampsia often develop rapidly and include Restlessness, Panting, tremors, and muscle Seizures. The female dog may also show an increased heart rate and shortness of breath, which is due to the disturbed calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. balance.

In severe cases, neurological symptoms such as disorientation, Convulsions, and even comaA coma is a deep state of unconsciousness where an individual cannot be awakened and does not respond to stimuli. In dogs and cats, it can be caused by severe illnesses, poisoning, or neurological problems. can occur. Without timely treatment, eclampsia can progress rapidly and become life-threatening.

Female dogs suffering from eclampsia may also show Behavioral changes, such as Aggressiveness or excessive Nervousness. These symptoms are often a sign that the condition is already advanced and requires immediate veterinary care.

Diagnosis

The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of eclampsia is based on a combination of clinical symptoms and blood tests. A low blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. level is the primary diagnostic criterion for this condition.

In addition, further diagnostic tests can be performed to rule out other possible causes of the symptoms, such as infections or other metabolicMetabolic refers to metabolism, i.e. the entirety of chemical processes that take place in a living organism to enable life processes. Metabolic disorders can cause a variety of Diseases in Dogs and cats. disorders. A complete historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits. and a thorough physical examination are also important to make an accurate diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients..

In some cases, the veterinarian may also order an X-rayX-ray is an imaging technique that uses X-rays to create images of the inside of the body. It is often used to diagnose bone fractures, lung diseases, and other conditions. or ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. to assess the general health of the female dog and rule out other complications.

Therapy

Treatment of eclampsia requires immediate veterinary intervention. The most important measure is the intravenous administration of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to rapidly increase blood levels and relieve symptoms.

In some cases, the female dog may also need other supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. treatments, such as fluid therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. to prevent dehydrationDehydration occurs when the body loses more fluid than it takes in. This can lead to a number of problems, including headaches, Dizziness, and in extreme cases, renal failure or Cardiovascular collapse. and oxygen therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. to support respiratoryRespiratory refers to breathing or the process of breathing. Respiratory diseases affect the respiratory tract and can impair the ability to breathe effectively. function.

After the acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. symptoms have been brought under control, it is important to closely monitor the female dog and, if necessary, adjust the diet to prevent a renewed calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. deficiencyDeficiency means a lack or absence of a necessary substance required for normal bodily functions or health, such as vitamins, minerals, or hormones.. This can be done by administering calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. supplements or a special diet.

Prognosis and follow-up care

The prognosis for female dogs with eclampsia is generally good if the condition is recognized and treated early. With rapid and appropriate therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., most female dogs can recover completely.

However, inadequate or delayed treatment can lead to serious complications that can worsen the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop.. In severe cases, permanent neurological damage can occur despite treatment.

In the long term, it is important to address the underlying causes of eclampsia to minimize the risk of recurrence. This often requires collaboration between the veterinarian and the pet owner to develop an appropriate nutritional and care plan.

Prevention

PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. of eclampsia begins with a balanced and nutritious diet during pregnancy and lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens.. Adequate calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. intake is crucial to ensure that the female dog has enough reserves to meet the increased demand.

It is also important to have the female dog examined regularly by a veterinarian to monitor her health and detect potential problems early. The veterinarian can give specific recommendations on nutrition and supplementationSupplementation is the addition of nutrients, vitamins, or other substances to a normal diet to compensate for deficiencies or to support general health and well-being. In dogs and cats, supplementation may vary depending on their health condition and nutritional needs. based on the individual needs of the female dog.

Another preventive approach is to limit the number of puppies a female dog nurses, especially in small breeds or female dogs that have already had an episode of eclampsia. In some cases, supplementing the puppies may be necessary to reduce the stress on the mother.

Through careful planning and monitoring, many cases of eclampsia can be avoided, leading to an improved quality of life for the female dog and her puppies. Further information on the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. and treatment of eclampsia can be found in [Veterinary Practice](https://www.tieraerztliche-praxis.de).

Outlook on current research

Eclampsia, also known as milk fever, is a serious and potentially life-threatening condition that occurs primarily in lactating female dogs. It is caused by a sudden drop in blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels. Current research is focusing intensively on the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. and treatment of this disease. One focus is on the development of new nutritional concepts for pregnant and lactating female dogs to minimize the risk of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. deficiencyDeficiency means a lack or absence of a necessary substance required for normal bodily functions or health, such as vitamins, minerals, or hormones.. This includes specially formulated feeds that have a balanced calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. and phosphorusPhosphorus is a vital mineral found in bones and teeth, playing a central role in energy metabolism and DNA. A balanced phosphorus to calcium ratio is essential for the health of dogs and cats. content and optimize the absorptionAbsorption refers to the uptake of substances by living cells or tissues. In the context of veterinary medicine, it often refers to the absorption of nutrients, drugs, or toxins from the digestive tract into the bloodstream. of these important minerals.

Another aspect of the research focuses on the genetic factors that could increase the risk of eclampsia. By identifying genetic markers, scientists hope to identify risk groups early and take targeted preventive measures. This could help to reduce the frequency and severity of the disease in the dog populationIn veterinary medicine, the term population refers to a group of animals of a particular species living in a specific geographic area or environment..

The development of new diagnostic procedures is also an important field of research. Current studies are investigating the effectiveness of blood tests that can measure calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels quickly and reliably to enable early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients.. These tests could in the future be part of routine examinations in pregnant and lactating female dogs to detect and treat eclampsia in good time.

In addition, there are research approaches that deal with the treatment of eclampsia. These include new drugs that can quickly stabilize calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. levels in the blood, as well as alternative therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. approaches that aim to improve the general health and well-being of the female dog. These studies could lead to innovative treatment strategies that improve the management of the disease.

Overall, current research shows promising approaches to improving the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring., diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and treatment of eclampsia in dogs. These advances could in the future lead to a significant reduction in the number of cases and an improvement in the quality of life of affected animals and their owners.

Frequently asked questions (FAQs)

What is Eclampsia in dogs? Eclampsia, also known as milk fever, is a condition caused by a sudden drop in the blood calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. level of lactating female dogs. It usually occurs in the first few weeks after the puppies are born and can be life-threatening if not treated quickly.
What symptoms does a female dog with eclampsia show? The most common symptoms include tremors, muscle spasms, weakness, Restlessness, and in severe cases, Convulsions. The female dog may also appear lethargic and have difficulty walking. A veterinarian should be consulted immediately if eclampsia is suspected.
How is eclampsia diagnosed in dogs? The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is based on the clinical symptoms and the measurement of the calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. level in the blood. A veterinarian can quickly determine whether there is a calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. deficiencyDeficiency means a lack or absence of a necessary substance required for normal bodily functions or health, such as vitamins, minerals, or hormones. by means of a blood testA blood test is a laboratory procedure in which blood is drawn and analyzed to obtain information about the body's health. It can include various parameters such as blood sugar, blood count, liver and kidney values. and take appropriate measures.
How is eclampsia treated? Treatment usually consists of the intravenous administration of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. to rapidly increase the calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. level in the blood. In severe cases, medication may also be necessary to control Seizures. Close monitoring by the veterinarian is important to avoid complications.
Can eclampsia be prevented in dogs? A balanced diet during pregnancy and lactationLactation refers to the production and secretion of milk by the mammary glands of female mammals after giving birth. It serves to nourish the offspring. Lactation problems in dogs and cats can cause health problems for both mother and puppies/kittens. can reduce the risk of eclampsia. It is important that the female dog receives a feed that is specially tailored to the needs of pregnant and lactating female dogs to ensure an adequate calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. supply.
Which dog breeds are particularly at risk for eclampsia? Smaller dog breeds tend to be more frequently affected than larger ones. This is because they relatively need more calcium to maintain milk production. Nevertheless, the disease can also occur in larger breeds.
What long-term effects can eclampsia have on a female dog? If eclampsia is treated quickly and effectively, the long-term prospects are usually good. However, untreated eclampsia can lead to permanent neurological damage or even Death. Early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and treatment are therefore crucial.
Can eclampsia recur in dogs? Yes, a female dog that has once suffered from eclampsia has an increased risk of developing the disease again in future litters. Careful monitoring and preventive measures can help to minimize the risk.
What should dog owners do if they notice symptoms of eclampsia? If you notice symptoms of eclampsia in your female dog, you should consult a veterinarian immediately. Rapid treatment is crucial to protect the health of the female dog and avoid complications.
Are there alternative treatment methods for eclampsia in dogs? While the administration of calciumCalcium is a mineral that is essential for building and maintaining strong bones and teeth. It also plays a role in blood coagulation, nerve transmission, and muscle contraction. is the primaryPrimary refers to the first or original cause of a disease or condition, as opposed to secondary causes or symptoms that develop from it. treatment, alternative approaches such as homeopathic remedies or acupuncture can help to support the general health of the female dog. However, it is important that these methods are only used as a supplement and under veterinary supervision.