In one sentence, describe what the following article is about: These dogs do not display any noticeable signs of being in heat. They produce reproductive hormones but don't develop the more usual external signs such as a swollen vulva. The only way you can really confirm if a silent heater is in heat is by observing the interactions between male dogs and the female dog in question. Male dogs will detect even low levels of female reproductive hormones, which will arouse their intense interest and attention. Be aware that some dogs do "skip" a heat. If they are unwell or their health is below par, or if they have lost weight recently, their body may save its energy and she won't come into heat when expected. This is nature's way of saying her body needs all its reserves to look after number one, rather than being in a state of flourishing good health where she could care for puppies. If you have a couple of male dogs, as well as your female dog who you think may be in heat, pay attention to how aggressive your male dogs are to one another. When more than one male dog is around a female in heat, they will begin to act very aggressively towards one another to prove who is dominant and should mate with the female dog. If you own one male dog and a female dog that you think may be in heat, pay attention to how the male dog reacts to being kept apart from the female dog. If he seems more agitated than normal and whines frequently, he is most likely verbalizing his irritation and not being allowed near the female dog. This is a good indicator that your dog is in heat. Although this is not foolproof and you need to interpret this in the context of the dog's physical changes and the male dog's usual behavior when kept apart from his female pal. Some dogs experience anxiety when separated from a close playmate and this is difficult to differentiate from sexual frustration. If you let your dogs run around together all the time, then observe what happens when your male dog gets near your female dog. If your dog allows her vagina to be licked and sniffed for an extended period of time, she is most likely in heat. In particular, if she lets herself be mounted it is a sign that she is in heat. However, allowing another dog to mount her, can also be a sign of submissive behavior, so once again, you need to interpret the whole picture and ask questions such as is her heat due and how does she normally behave around dogs. Remember, sniffing bottoms is something dogs like to do a lot, at the best of times, just to work out who is who! If your male and female dogs don't normally interact, keep your male dog on a leash when you bring him near your female dog. One or both dogs may become aggressive if they are not familiar with each other.
Summary: Know that some female dogs are 'silent heaters'. Pay attention to the levels of aggressiveness in male dogs. Notice an increase in verbal communication and agitation. Observe the interactions between your male dog and your female dog.

In one sentence, describe what the following article is about: Urinary catheters are inserted temporarily following many surgical procedures. Once you have recovered from the surgery, or the obstruction has been removed, you don't need the catheter anymore. For example, if you have prostate surgery, you will generally receive a catheter that can be taken out 10 to 14 days after surgery. Follow your medical provider's post-surgical guidelines and recommendations. These will be individualized to your health care situation. Your catheter will only need to be replaced if you cannot independently empty your bladder. People who get a catheter because they have a chronic illness or incontinence (a condition where you have a problem holding urine inside) that has been caused by an injury may need to have a catheter for a long period of time. For example, if you suffered a spinal cord injury that has caused you to develop incontinence, you will need to have a catheter in place for a long period of time. Replace your catheter with a fresh one every 14 days or as directed by manufacturer or physician recommendations. Some people experience complications when they get a catheter. One of the most common negative side effects is developing a urinary tract infection. If you see any pus near your urethra, or have cloudy, bloody, or foul-smelling urine, you may have a urinary tract infection. Your catheter will have to be removed and you should talk to your doctor about treating your tract infection. You may also notice a large amount of urine coming out from around the catheter. If you do notice this, remove the catheter. It is most likely defective. If there is no urine draining into the catheter, there may be an obstruction in the device. If this is the case, it needs to be removed immediately and you should go to the doctor right away. Do not irrigate your catheter without first consulting a healthcare professional.
Summary: Remove a catheter permanently after its use has come to an end. Change your catheter regularly if you need your catheter for a long period of time. Remove your catheter if you start having unwanted side effects.

In one sentence, describe what the following article is about: If you're in love with someone, you'll likely long for them whenever they're away from you. You may even miss them when they're only away for a short time. Look for feelings of wanting to be with them every moment. This could be a sign you're in love. For example, you might catch yourself thinking, "I miss him," even though he just left. Similarly, you might find yourself cuddling a pillow and imagining it's the person you love. You may fall in love with someone who doesn't feel the same way. This can be very disappointing and hurtful, but it's best to let yourself move on. Everyone has a right to their feelings, so don't try to make them love you. Instead, get over them by sharing your feelings, grieving the loss of your fantasy, and moving on with your life. Don't wait for someone to change their mind and start loving you. Remember, a better match for you may be out there waiting for you to find them. If you continue pursuing a person who doesn't return your feelings, you're likely becoming obsessed with them. This is harmful to both you and them. Respect their choices and search for love with someone else.
Summary:
Notice if you feel a longing for someone. Pursue your love only if the feeling is mutual.