Why is my male dog excessively licking and dripping yellow urine?

Panda certainly could have a urinary problem, although things like UTI's (which are a common urinary problem) are a bit unusual in male dogs. I tend to see more male dogs, especially the unneutered ones, with things like foreign objects lodged in the prepuce (the skin around the penis) which ultimately leads to infection. Grass awns (the seed heads) can do this. If Panda continues to lick at his genitals (I'm assuming you mean his penis) then he needs to be examined by his vet, as getting a good look at this area can be difficult. A urinalysis can be performed to look for a urinary tract infection as well.

Usually penile discharge is due to an infection of the penile tissue itself known as balanitis. His constant licking will be leading to more inflammation. Your vet should be able to treat this easily with antibiotics and it would be good to have him wear a cone to stop the licking whilst it heals.

His penis looks inflamed, possibly infected, you will need to take him to the vet to get it checked, he will need to wear an e-collar in order to prevent from him to continue licking his penis and getting it worse, he will also need an antibiotic course.

Causes of licking the prepuce/penis area could be a urinary tract infection, crystals in the urine, stones in the urinary tract, or trauma to the area. It is important that you make an appointment to have Mako seen by your veterinarian as soon as you can to help determine the cause of his behaviour and to start treatment. If you notice him straining to urinate/unable to produce urine, this is a medical emergency and he should be seen by a vet immediately. I recommend you put an e-collar (cone) on him to help prevent him from biting/licking at the area as this may help reduce the risk of infection

It sounds like he may have either hurt his penis or he cannot pee. If he keeps licking it and or acts like it hurts, you should have a vet examine the penis. Unfortunately only a hands-on exam will reveal what is wrong.

Without pictures it is difficult to say what this is for sure. This could be smegma, which is the normal yellow discharge that is seen coming from a male dog's prepuce, which is a natural lubricant for the penis inside the prepuce. If it is not liquid at the prepuce you are seeing and a pustule, this could be infectious. If you could provide photos and post again it may help determine what this is exactly. Otherwise, a veterinarian should take a look at this so that the most appropriate diagnostic and treatment recommendations can be made. I hope this helps! Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

Dogs can definitely do this as part of normal grooming behavior, or maybe a bit excessively sometimes. It's also possible that something is irritating him down there. This could be something like an infection, allergies, or impacted anal sacs. It's a good idea to have a vet check him for any medical problems leading to the excessive licking. It's definitely possible that there is a reason for this, which can be corrected. I hope that helps.