Can Damaged Sperm Lead To Pregnancy Complications?
Pregnancy is usually a time of happiness and hope, but it also brings in the unexpected. While there is much talk placed on the health of the expectant mother, the quality sperm coming from the father could dramatically change the outcome of pregnancy. The latest study suggests the risks of sperm DNA damage, even increasing the risks of complications preeclampsia and birth prematurity.
In a groundbreaking research study conducted by scientists from Lund University in Sweden, scientists discovered that DNA damage in sperm increases the risk almost up to double that of preeclampsia, this is a dangerous condition that may arise during pregnancies characterized by high blood pressure. In addition, DNA anomalies also increase the risk of premature births, and this further entails increased related adverse health outcomes for infants born through such conditions.
The next step would be to find out which group of men respond best to methods to prevent and treat sperm DNA damage, and to test these methods to prevent pregnancy complications," said Dr. Amelie Stenqvist, a lecturer at Lund University. According to this study, a significant message is put forward that paternal health assumes an important role in a successful pregnancy.
It focused its research on men, specifically whose sperm contained high levels of DNA fragmentation. For instance, some 20% to 30% of babies born via in vitro fertilization have fathers whose sperm contains damaged DNA. The DNA fragmentation index, an indicator to assess the percentage of DNA damage in sperm, indicated that when the percentage of sperm with a DFI above 30% was observed, they had almost no chance of resulting in natural conception. Even a DFI greater than 20% showed that the chances of getting pregnant are highly risky as the risk factor for pregnancy complications like preeclampsia is much high.
Uncommon Complications during Pregnancy
The most alarming complication during pregnancy is preeclampsia. It affects approximately 5% to 8% of pregnancies worldwide, which can cause fatal conditions for both the mother and the baby. The new findings now point out that sperm DNA damage may contribute to this condition, especially if it is due to assisted reproductive techniques such as IVF pregnancies. The research found that a DFI above 20% doubled the risk of preeclampsia from a mere 5% to almost 11% per.
Apart from causing preeclampsia, DNA fragmentation in sperm is also known to increase the risk for prematurity. Most premature babies experience respiratory, neurological, and developmental complications. Therefore, some degree of early intervention might be important for prospective parents.
Some of the rarer, though serious complications include placental abruption, which is the separation of the placenta from the uterine wall and intrauterine growth restriction, a condition by which the baby does not grow normally in the womb. These conditions though rare are potentially catastrophic both to the mother and the child. Results from this study may help in establishing the contribution of the father in such pregnancies.
Further study into sperm DNA damage is of urgent interest with regard to its consequences for pregnancy outcomes. According to Professor Aleksander Giwercman of Lund University in the field of Reproductive Medicine, "the analysis of DFI should be introduced as routine test in all fertility clinics.". "It could give answers to couples who are having difficulties with infertility, but our latest result also shows that DFI analysis can be a method to identify high-risk pregnancies, explained Giwercman.
For many, DNA fragmentation in sperm is often treatable. Common causes are oxidative stress, age, smoking, being obese, and infections. Addressing these elements will likely reduce DNA damage in sperm for men, raising the chances for a healthy pregnancy and baby.
Overall, the study importance should take into consideration paternal as well as maternal health towards reaching for a healthy pregnancy. Though DNA fragmentation in the sperm is supposed to increase the risk factors for complications in pregnancies, the advances into novel treatment approaches and tests are likely to alleviate complications in many families. Thus the findings of this study offer optimism and pave a pathway to more holistic fertility treatments in the future.
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A two-year-old boy from Bristol, UK has died from a rare heart disease, known to mostly affect children with only flu-like symptoms, on January 8.
Hudson Martin had been diagnosed with Kawasaki disease when he was seven months old and was placed on lifelong medication including aspirin and blood thinners to reduce the risk of clots. Since then, he had been living a normal and happy life, according to father Damien Martin.
He told Bristol Live: "You’d never know anything was wrong from pictures or videos. He bounced off everything. He loved climbing, dancing, music, he was a proper daredevil."
But days before his third birthday, he suddenly collapsed while playing at home. Despite being given CPR by paramedics for an hour, his heart did not restart and he passed away.
“They did absolutely everything they could,” Damien said. "His heart just wouldn't come back."
Also known as mucocutaneous lymph node syndrome, Kawasaki disease causes inflammation in the walls of small to medium-sized blood vessels that carry blood throughout the body which can damage to the heart and blood vessels, mostly in children younger than five years old.
When this happens, the heart doesn't work as well to pump blood to the body and could burst (coronary artery dilation and aneurysms). It also causes swelling in the lymph nodes and mucous membranes inside the mouth, nose, eyes and throat.
Apart from a 102.2 degrees Fahrenheit (39 degrees Celsius) fever that can last for five days, children with Kawasaki may also experience some or all of the following symptoms:
It remains unknown what causes Kawasaki disease in children and if it affects adults.
Diagnosis involves ruling out other diseases that cause the same symptoms which include:
While this non-contagious disease can be treated with a mixture of antibodies given through the veins (intravenous immunoglobulin) and aspirin, it remains uncurable. Doctors may also advice steroids if intravenous immunoglobulin is not effective.
After receiving treatment for Kawasaki disease, most children recover fully and long-term follow-up care remains unnecessary. However, children who have suffered through aneurysms or other complications related to the disease will need lifelong monitoring with a cardiologist.
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Cases of scabies, a highly contagious skin condition caused by microscopic mites, continue to remain higher than normal across England this winter, according to the latest surveillance data. Recent findings from the Royal College of General Practitioners’ Research and Surveillance Centre indicate that scabies has been spreading more widely than expected over the past few months, with infections steadily increasing through autumn and winter.
Overall, reported cases have stayed above the usual five-year average, with the sharpest rise recorded during the final four months of last year, particularly across northern regions of the country. With scabies infections continuing to climb, concerns are growing around which treatments are safe to use, especially when it comes to children.
Scabies is caused by a microscopic parasite known as Sarcoptes scabiei. This mite burrows into the top layer of the skin to lay its eggs, triggering severe itching and a red, spotty rash that often becomes more intense at night. Although the mites are too small to be seen easily, measuring less than half a millimetre, the body reacts to their saliva, eggs, and waste, leading to an allergic response.
Scabies spreads through prolonged skin-to-skin contact and can affect people of all ages. According to the NHS, it is most commonly transmitted through close household contact, including between partners, family members, people living together, and during sexual activity.
UK Health Security Agency surveillance data shows that scabies cases reported through sexual health services remained relatively stable before the COVID-19 pandemic, but numbers began rising sharply from 2022 onwards. Diagnoses increased from 3,393 cases in 2023 to 4,872 cases in 2024, marking a 44 per cent rise.
Both the UKHSA and the British Association for Sexual Health and HIV (BASHH) suggest several reasons could be driving the surge:
Experts also caution that the actual number of cases is likely much higher, as the available data only reflects diagnoses made in sexual health settings.
Ivermectin is an oral antiparasitic medicine used to treat scabies by paralysing the mites. It offers a systemic alternative to topical creams and is often considered in cases that are widespread, severe, or involve institutional outbreaks. Because the drug does not kill scabies eggs, a second dose is usually required after seven to fourteen days to target newly hatched mites.
According to the Centres for Disease Control and Prevention, ivermectin is generally well tolerated, improves treatment compliance compared to creams, and has been widely used in mass drug administration programmes, though repeat dosing is important due to its limited effect on mite eggs.
Despite its broad use in programmes targeting conditions such as river blindness, intestinal worms, and scabies, ivermectin has traditionally not been recommended for children weighing under 15 kilograms, largely due to limited safety data. However, researchers revisited this concern following a systematic review and meta-analysis that suggested the drug could be safe even in children weighing as little as 11 pounds.
In a double-blind clinical trial, researchers assessed the safety, effectiveness, and pharmacokinetics of ivermectin in young children with scabies. A total of 240 children weighing between 11 pounds and under 33 pounds in The Gambia, Kenya, and Brazil were randomly assigned to receive ivermectin at doses of 200, 400, or 800 micrograms per kilogram alongside a placebo cream, or placebo tablets alongside permethrin cream. Blood samples were collected on days 0, 3, 7, 10, and 14 to monitor biochemical markers, drug levels, and blood health.
The findings showed that ivermectin was effective in treating scabies, with just one serious adverse event reported. This involved a temporary increase in liver enzymes, which returned to normal levels within 32 days. All other side effects possibly linked to the treatment were mild, resolved on their own, and were similar to those seen in children weighing more than 33 pounds.
“Outcomes from the Ivermectin Safety in Small Children trial will hopefully provide greater reassurance that ivermectin can be safely used in children weighing less than 15 kilograms,” said lead study author Kevin Kobylinski, PhD, an honorary visiting research fellow at the University of Oxford with the Mahidol Oxford Tropical Medicine Research Unit in Bangkok, in an ASTMH press release.
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England is recording higher-than-normal scabies infections this winter. Health authorities have cautioned that the condition, caused by microscopic mites known as Sarcoptes scabiei that tunnel into the skin, spreads quickly through close physical contact and often leads to severe itching and irritation. Data from the Royal College of General Practitioners’ Research and Surveillance Centre shows scabies is circulating more widely than usual in England, with cases increasing through the autumn and winter months.
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Scabies is caused by the Sarcoptes scabiei mite. These tiny parasites burrow beneath the skin where they survive, feed and lay eggs. The presence of the mites triggers an allergic reaction in the skin, resulting in an itchy rash. Scabies passes easily from one person to another, particularly among people living in close quarters.
If one member of a household is infected, doctors usually advise checking and treating other family members and close contacts at the same time, according to the Cleveland Clinic.
Early signs of scabies include intense itching, which is often worse at night, along with a pimple-like rash, small blisters, and thin, irregular lines on the skin known as burrows. These symptoms commonly appear between the fingers, on the wrists, elbows, armpits, waist and genitals. According to the National Health Service, these reactions occur due to the body’s response to the mites and their eggs beneath the skin.
Symptoms do not usually appear straight away and may take three to six weeks after the initial infection to develop. However, people who have had scabies before may notice symptoms within a few days. Typical signs include severe night-time itching and small bumps, blisters or burrow-like tracks on areas such as the hands, wrists, elbows, nipples, genitals and waist.
In more severe cases, the skin may become thickened, rough and scaly. Among children and older adults, scabies can also affect the scalp, face or the soles of the feet.
Yes, scabies exists in several forms beyond the classic type. These include:
Scabies is usually treated successfully with prescribed medicated creams and lotions called scabicides, along with careful hygiene measures. To avoid reinfection, clothes, bedding and towels should be washed at high temperatures and tumble-dried or ironed. Items that cannot be washed should be sealed in a bag for at least three days, as the mites cannot survive without contact with human skin.
Professor Michael Marks, a professor of medicine at the London School of Hygiene and Tropical Medicine and former chair of the International Alliance for the Control of Scabies, said the rise in cases may be linked to delays in accessing medical care and gaps in identifying and treating close contacts, which can allow the infection to continue spreading.
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