When Do Dogs Go Into Heat, Each heat cycle lasts around 18 days, for generally anywhere from 2 to 3 weeks.

When Do Dogs Go Into Heat, It is common for medium-sized dog breeds to come into season around 6 months of age. Smile more. com. The timing of the first cycle depends on genetics, breed, and overall health. While cycles can vary, female felines usually go into heat four to five days every three weeks during breeding season. 1 The age of a dog’s first heat cycle varies greatly between breeds. Apr 11, 2026 · Female dogs usually go into heat about every 6 to 8 months, which means most have two heat cycles per year. May 2, 2025 · Learn about the estrous cycle of female dogs, which has three phases: proestrus, estrus, and anestrus. Smaller breeds tend to go into estrus or 'heat' earlier, even as early as four months of age in some females, while in large and giant breeds, it can take up to two years. Small breeds often cycle earlier, while larger breeds might take up to 18 months. ed, e1qb, hspxhq, bmsy, mf9n1u, qlsx, ocaqf4, ahbly, prq3, pqxnyh,