Yes, there can be problems with men and fertility as they age. While men can produce sperm throughout their lives, there are a number of age-related factors that can affect sperm quality and quantity.
As men age, they may experience a decrease in testosterone levels, which can lead to a decline in sperm count and motility. Studies have also shown that older men are more likely to have genetic mutations in their sperm, which can increase the risk of birth defects and developmental disorders in their offspring.
In addition, older men may be more likely to have underlying health conditions such as diabetes, hypertension, and obesity, which can also affect fertility. Lifestyle factors such as smoking, alcohol consumption, and exposure to environmental toxins can also have a negative impact on male fertility.
Overall, while men can continue to father children well into their later years, it's important to be aware of the potential risks and to take steps to maintain good overall health and fertility. If you have concerns about your fertility or are planning to have children later in life, it's a good idea to talk to your doctor or a fertility specialist.